Finite Math Examples

$4 x^{2} + y^{2} = 9$ , $2 x^{2} - y^{2} = 16$

Step 1

Solve for $y$ in $4 x^{2} + y^{2} = 9$ .

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Step 1.1

Subtract $4 x^{2}$ from both sides of the equation.

$y^{2} = 9 - 4 x^{2}$

$2 x^{2} - y^{2} = 16$

Step 1.2

Take the specified root of both sides of the equation to eliminate the exponent on the left side.

$y = \pm \sqrt{9 - 4 x^{2}}$

$2 x^{2} - y^{2} = 16$

Step 1.3

Simplify $\pm \sqrt{9 - 4 x^{2}}$ .

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Step 1.3.1

Write the expression using exponents.

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Step 1.3.1.1

Rewrite $9$ as $3^{2}$ .

$y = \pm \sqrt{3^{2} - 4 x^{2}}$

$2 x^{2} - y^{2} = 16$

Step 1.3.1.2

Rewrite $4 x^{2}$ as ${(2 x)}^{2}$ .

$y = \pm \sqrt{3^{2} - {(2 x)}^{2}}$

$2 x^{2} - y^{2} = 16$

$y = \pm \sqrt{3^{2} - {(2 x)}^{2}}$

$2 x^{2} - y^{2} = 16$

Step 1.3.2

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 3$ and $b = 2 x$ .

$y = \pm \sqrt{(3 + 2 x) (3 - (2 x))}$

$2 x^{2} - y^{2} = 16$

Step 1.3.3

Multiply $2$ by $- 1$ .

$y = \pm \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

$y = \pm \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

Step 1.4

The complete solution is the result of both the positive and negative portions of the solution.

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Step 1.4.1

First, use the positive value of the $\pm$ to find the first solution.

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

Step 1.4.2

Next, use the negative value of the $\pm$ to find the second solution.

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

Step 1.4.3

The complete solution is the result of both the positive and negative portions of the solution.

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - y^{2} = 16$

Step 2

Solve the system $y = \sqrt{(3 + 2 x) (3 - 2 x)}, 2 x^{2} - y^{2} = 16$ .

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Step 2.1

Replace all occurrences of $y$ with $\sqrt{(3 + 2 x) (3 - 2 x)}$ in each equation.

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Step 2.1.1

Replace all occurrences of $y$ in $2 x^{2} - y^{2} = 16$ with $\sqrt{(3 + 2 x) (3 - 2 x)}$ .

$2 x^{2} - {(\sqrt{(3 + 2 x) (3 - 2 x)})}^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2

Simplify the left side.

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Step 2.1.2.1

Simplify $2 x^{2} - {(\sqrt{(3 + 2 x) (3 - 2 x)})}^{2}$ .

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Step 2.1.2.1.1

Simplify each term.

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Step 2.1.2.1.1.1

Rewrite ${\sqrt{(3 + 2 x) (3 - 2 x)}}^{2}$ as $(3 + 2 x) (3 - 2 x)$ .

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Step 2.1.2.1.1.1.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{(3 + 2 x) (3 - 2 x)}$ as ${((3 + 2 x) (3 - 2 x))}^{\frac{1}{2}}$ .

$2 x^{2} - {({((3 + 2 x) (3 - 2 x))}^{\frac{1}{2}})}^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.1.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{1}{2} \cdot 2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.1.3

Combine $\frac{1}{2}$ and $2$ .

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{2}{2}} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.1.4

Cancel the common factor of $2$ .

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Step 2.1.2.1.1.1.4.1

Cancel the common factor.

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{2}{2}} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.1.4.2

Rewrite the expression.

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.1.5

Simplify.

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.2

Expand $(3 + 2 x) (3 - 2 x)$ using the FOIL Method.

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Step 2.1.2.1.1.2.1

Apply the distributive property.

$2 x^{2} - (3 (3 - 2 x) + 2 x (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.2.2

Apply the distributive property.

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x (3 - 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.2.3

Apply the distributive property.

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.3

Combine the opposite terms in $3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)$ .

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Step 2.1.2.1.1.3.1

Reorder the factors in the terms $3 (- 2 x)$ and $2 x \cdot 3$ .

$2 x^{2} - (3 \cdot 3 - 2 \cdot (3 x) + 2 \cdot (3 x) + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.3.2

Add $- 2 \cdot 3 x$ and $2 \cdot 3 x$ .

$2 x^{2} - (3 \cdot 3 + 0 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.3.3

Add $3 \cdot 3$ and $0$ .

$2 x^{2} - (3 \cdot 3 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (3 \cdot 3 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.4

Simplify each term.

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Step 2.1.2.1.1.4.1

Multiply $3$ by $3$ .

$2 x^{2} - (9 + 2 x (- 2 x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.4.2

Rewrite using the commutative property of multiplication.

$2 x^{2} - (9 + 2 \cdot (- 2 x \cdot x)) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.4.3

Multiply $x$ by $x$ by adding the exponents.

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Step 2.1.2.1.1.4.3.1

Move $x$ .

$2 x^{2} - (9 + 2 \cdot (- 2 (x \cdot x))) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.4.3.2

Multiply $x$ by $x$ .

$2 x^{2} - (9 + 2 \cdot (- 2 x^{2})) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (9 + 2 \cdot (- 2 x^{2})) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.4.4

Multiply $2$ by $- 2$ .

$2 x^{2} - (9 - 4 x^{2}) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (9 - 4 x^{2}) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.5

Apply the distributive property.

$2 x^{2} - 1 \cdot 9 - (- 4 x^{2}) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.6

Multiply $- 1$ by $9$ .

$2 x^{2} - 9 - (- 4 x^{2}) = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.1.7

Multiply $- 4$ by $- 1$ .

$2 x^{2} - 9 + 4 x^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - 9 + 4 x^{2} = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.1.2.1.2

Add $2 x^{2}$ and $4 x^{2}$ .

$6 x^{2} - 9 = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2

Solve for $x$ in $6 x^{2} - 9 = 16$ .

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Step 2.2.1

Move all terms not containing $x$ to the right side of the equation.

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Step 2.2.1.1

Add $9$ to both sides of the equation.

$6 x^{2} = 16 + 9$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.1.2

Add $16$ and $9$ .

$6 x^{2} = 25$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} = 25$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.2

Divide each term in $6 x^{2} = 25$ by $6$ and simplify.

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Step 2.2.2.1

Divide each term in $6 x^{2} = 25$ by $6$ .

$\frac{6 x^{2}}{6} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.2.2

Simplify the left side.

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Step 2.2.2.2.1

Cancel the common factor of $6$ .

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Step 2.2.2.2.1.1

Cancel the common factor.

$\frac{6 x^{2}}{6} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.2.2.1.2

Divide $x^{2}$ by $1$ .

$x^{2} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.3

Take the specified root of both sides of the equation to eliminate the exponent on the left side.

$x = \pm \sqrt{\frac{25}{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4

Simplify $\pm \sqrt{\frac{25}{6}}$ .

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Step 2.2.4.1

Rewrite $\sqrt{\frac{25}{6}}$ as $\frac{\sqrt{25}}{\sqrt{6}}$ .

$x = \pm \frac{\sqrt{25}}{\sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.2

Simplify the numerator.

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Step 2.2.4.2.1

Rewrite $25$ as $5^{2}$ .

$x = \pm \frac{\sqrt{5^{2}}}{\sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.2.2

Pull terms out from under the radical, assuming positive real numbers.

$x = \pm \frac{5}{\sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5}{\sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.3

Multiply $\frac{5}{\sqrt{6}}$ by $\frac{\sqrt{6}}{\sqrt{6}}$ .

$x = \pm \frac{5}{\sqrt{6}} \cdot \frac{\sqrt{6}}{\sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4

Combine and simplify the denominator.

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Step 2.2.4.4.1

Multiply $\frac{5}{\sqrt{6}}$ by $\frac{\sqrt{6}}{\sqrt{6}}$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$x = \pm \frac{5 \sqrt{6}}{{\sqrt{6}}^{1 + 1}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.5

Add $1$ and $1$ .

$x = \pm \frac{5 \sqrt{6}}{{\sqrt{6}}^{2}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 2.2.4.4.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$x = \pm \frac{5 \sqrt{6}}{{(6^{\frac{1}{2}})}^{2}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{1}{2} \cdot 2}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6.3

Combine $\frac{1}{2}$ and $2$ .

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{2}{2}}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6.4

Cancel the common factor of $2$ .

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Step 2.2.4.4.6.4.1

Cancel the common factor.

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{2}{2}}}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6.4.2

Rewrite the expression.

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.4.4.6.5

Evaluate the exponent.

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.5

The complete solution is the result of both the positive and negative portions of the solution.

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Step 2.2.5.1

First, use the positive value of the $\pm$ to find the first solution.

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.5.2

Next, use the negative value of the $\pm$ to find the second solution.

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.2.5.3

The complete solution is the result of both the positive and negative portions of the solution.

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 2.3

Replace all occurrences of $x$ with $\frac{5 \sqrt{6}}{6}$ in each equation.

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Step 2.3.1

Replace all occurrences of $x$ in $y = \sqrt{(3 + 2 x) (3 - 2 x)}$ with $\frac{5 \sqrt{6}}{6}$ .

$y = \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{6})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2

Simplify the right side.

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Step 2.3.2.1

Simplify $\sqrt{(3 + 2 (\frac{5 \sqrt{6}}{6})) (3 - 2 \frac{5 \sqrt{6}}{6})}$ .

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Step 2.3.2.1.1

Cancel the common factor of $2$ .

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Step 2.3.2.1.1.1

Factor $2$ out of $6$ .

$y = \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{2 (3)})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.1.2

Cancel the common factor.

$y = \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{2 \cdot 3})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.1.3

Rewrite the expression.

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.2

Cancel the common factor of $2$ .

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Step 2.3.2.1.2.1

Factor $2$ out of $- 2$ .

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 (- 1) (\frac{5 \sqrt{6}}{6}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.2.2

Factor $2$ out of $6$ .

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{5 \sqrt{6}}{2 \cdot 3}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.2.3

Cancel the common factor.

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{5 \sqrt{6}}{2 \cdot 3}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.2.4

Rewrite the expression.

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.3

Rewrite $- 1 \frac{5 \sqrt{6}}{3}$ as $- \frac{5 \sqrt{6}}{3}$ .

$y = \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.4

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = \sqrt{(3 \cdot \frac{3}{3} + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.5

Combine $3$ and $\frac{3}{3}$ .

$y = \sqrt{(\frac{3 \cdot 3}{3} + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.6

Simplify the expression.

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Step 2.3.2.1.6.1

Combine the numerators over the common denominator.

$y = \sqrt{\frac{3 \cdot 3 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.6.2

Multiply $3$ by $3$ .

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.7

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 \cdot \frac{3}{3} - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.8

Combine fractions.

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Step 2.3.2.1.8.1

Combine $3$ and $\frac{3}{3}$ .

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (\frac{3 \cdot 3}{3} - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.8.2

Simplify the expression.

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Step 2.3.2.1.8.2.1

Combine the numerators over the common denominator.

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{3 \cdot 3 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.8.2.2

Multiply $3$ by $3$ .

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{9 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{9 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.8.3

Multiply $\frac{9 + 5 \sqrt{6}}{3}$ by $\frac{9 - 5 \sqrt{6}}{3}$ .

$y = \sqrt{\frac{(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9

Simplify the numerator.

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Step 2.3.2.1.9.1

Expand $(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})$ using the FOIL Method.

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Step 2.3.2.1.9.1.1

Apply the distributive property.

$y = \sqrt{\frac{9 (9 - 5 \sqrt{6}) + 5 \sqrt{6} (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.1.2

Apply the distributive property.

$y = \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.1.3

Apply the distributive property.

$y = \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2

Simplify and combine like terms.

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Step 2.3.2.1.9.2.1

Simplify each term.

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Step 2.3.2.1.9.2.1.1

Multiply $9$ by $9$ .

$y = \sqrt{\frac{81 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.2

Multiply $- 5$ by $9$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.3

Multiply $9$ by $5$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.4

Multiply $5 \sqrt{6} (- 5 \sqrt{6})$ .

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Step 2.3.2.1.9.2.1.4.1

Multiply $- 5$ by $5$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \sqrt{6} \sqrt{6}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{1 + 1}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.4.5

Add $1$ and $1$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 2.3.2.1.9.2.1.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {(6^{\frac{1}{2}})}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{1}{2} \cdot 2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5.3

Combine $\frac{1}{2}$ and $2$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5.4

Cancel the common factor of $2$ .

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Step 2.3.2.1.9.2.1.5.4.1

Cancel the common factor.

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5.4.2

Rewrite the expression.

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.5.5

Evaluate the exponent.

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.1.6

Multiply $- 25$ by $6$ .

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.2

Subtract $150$ from $81$ .

$y = \sqrt{\frac{- 69 - 45 \sqrt{6} + 45 \sqrt{6}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.3

Add $- 45 \sqrt{6}$ and $45 \sqrt{6}$ .

$y = \sqrt{\frac{- 69 + 0}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.9.2.4

Add $- 69$ and $0$ .

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10

Simplify terms.

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Step 2.3.2.1.10.1

Multiply $3$ by $3$ .

$y = \sqrt{\frac{- 69}{9}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.2

Cancel the common factor of $- 69$ and $9$ .

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Step 2.3.2.1.10.2.1

Factor $3$ out of $- 69$ .

$y = \sqrt{\frac{3 (- 23)}{9}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.2.2

Cancel the common factors.

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Step 2.3.2.1.10.2.2.1

Factor $3$ out of $9$ .

$y = \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.2.2.2

Cancel the common factor.

$y = \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.2.2.3

Rewrite the expression.

$y = \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.3

Simplify the expression.

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Step 2.3.2.1.10.3.1

Move the negative in front of the fraction.

$y = \sqrt{- \frac{23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.3.2

Rewrite $- 1$ as $i^{2}$ .

$y = \sqrt{i^{2} (\frac{23}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \sqrt{i^{2} (\frac{23}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.10.4

Pull terms out from under the radical.

$y = i \sqrt{\frac{23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = i \sqrt{\frac{23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.11

Rewrite $\sqrt{\frac{23}{3}}$ as $\frac{\sqrt{23}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23}}{\sqrt{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.12

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13

Combine and simplify the denominator.

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Step 2.3.2.1.13.1

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.2

Raise $\sqrt{3}$ to the power of $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.3

Raise $\sqrt{3}$ to the power of $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{1 + 1}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.5

Add $1$ and $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{2}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

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Step 2.3.2.1.13.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{{(3^{\frac{1}{2}})}^{2}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{1}{2} \cdot 2}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6.3

Combine $\frac{1}{2}$ and $2$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6.4

Cancel the common factor of $2$ .

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Step 2.3.2.1.13.6.4.1

Cancel the common factor.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6.4.2

Rewrite the expression.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.13.6.5

Evaluate the exponent.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.14

Simplify the numerator.

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Step 2.3.2.1.14.1

Combine using the product rule for radicals.

$y = i (\frac{\sqrt{23 \cdot 3}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.14.2

Multiply $23$ by $3$ .

$y = i (\frac{\sqrt{69}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{69}}{3})$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.3.2.1.15

Combine $i$ and $\frac{\sqrt{69}}{3}$ .

$y = \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

Step 2.4

Replace all occurrences of $x$ with $- \frac{5 \sqrt{6}}{6}$ in each equation.

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Step 2.4.1

Replace all occurrences of $x$ in $y = \sqrt{(3 + 2 x) (3 - 2 x)}$ with $- \frac{5 \sqrt{6}}{6}$ .

$y = \sqrt{(3 + 2 (- \frac{5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2

Simplify the right side.

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Step 2.4.2.1

Simplify $\sqrt{(3 + 2 (- \frac{5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$ .

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Step 2.4.2.1.1

Cancel the common factor of $2$ .

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Step 2.4.2.1.1.1

Move the leading negative in $- \frac{5 \sqrt{6}}{6}$ into the numerator.

$y = \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.1.2

Factor $2$ out of $6$ .

$y = \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{2 (3)})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.1.3

Cancel the common factor.

$y = \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{2 \cdot 3})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.1.4

Rewrite the expression.

$y = \sqrt{(3 + \frac{- 5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 + \frac{- 5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.2

Move the negative in front of the fraction.

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.3

Cancel the common factor of $2$ .

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Step 2.4.2.1.3.1

Move the leading negative in $- \frac{5 \sqrt{6}}{6}$ into the numerator.

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{- 5 \sqrt{6}}{6})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.3.2

Factor $2$ out of $- 2$ .

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 (- 1) (\frac{- 5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.3.3

Factor $2$ out of $6$ .

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{- 5 \sqrt{6}}{2 \cdot 3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.3.4

Cancel the common factor.

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{- 5 \sqrt{6}}{2 \cdot 3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.3.5

Rewrite the expression.

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{- 5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{- 5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.4

Move the negative in front of the fraction.

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 (- \frac{5 \sqrt{6}}{3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.5

Multiply $- 1 (- \frac{5 \sqrt{6}}{3})$ .

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Step 2.4.2.1.5.1

Multiply $- 1$ by $- 1$ .

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 1 (\frac{5 \sqrt{6}}{3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.5.2

Multiply $\frac{5 \sqrt{6}}{3}$ by $1$ .

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.6

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = \sqrt{(3 \cdot \frac{3}{3} - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.7

Combine $3$ and $\frac{3}{3}$ .

$y = \sqrt{(\frac{3 \cdot 3}{3} - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.8

Simplify the expression.

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Step 2.4.2.1.8.1

Combine the numerators over the common denominator.

$y = \sqrt{\frac{3 \cdot 3 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.8.2

Multiply $3$ by $3$ .

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.9

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 \cdot \frac{3}{3} + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.10

Combine fractions.

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Step 2.4.2.1.10.1

Combine $3$ and $\frac{3}{3}$ .

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (\frac{3 \cdot 3}{3} + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.10.2

Simplify the expression.

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Step 2.4.2.1.10.2.1

Combine the numerators over the common denominator.

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{3 \cdot 3 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.10.2.2

Multiply $3$ by $3$ .

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{9 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{9 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.10.3

Multiply $\frac{9 - 5 \sqrt{6}}{3}$ by $\frac{9 + 5 \sqrt{6}}{3}$ .

$y = \sqrt{\frac{(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11

Simplify the numerator.

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Step 2.4.2.1.11.1

Expand $(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})$ using the FOIL Method.

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Step 2.4.2.1.11.1.1

Apply the distributive property.

$y = \sqrt{\frac{9 (9 + 5 \sqrt{6}) - 5 \sqrt{6} (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.1.2

Apply the distributive property.

$y = \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.1.3

Apply the distributive property.

$y = \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2

Simplify and combine like terms.

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Step 2.4.2.1.11.2.1

Simplify each term.

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Step 2.4.2.1.11.2.1.1

Multiply $9$ by $9$ .

$y = \sqrt{\frac{81 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.2

Multiply $5$ by $9$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.3

Multiply $9$ by $- 5$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.4

Multiply $- 5 \sqrt{6} (5 \sqrt{6})$ .

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Step 2.4.2.1.11.2.1.4.1

Multiply $5$ by $- 5$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \sqrt{6} \sqrt{6}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{1 + 1}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.4.5

Add $1$ and $1$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 2.4.2.1.11.2.1.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {(6^{\frac{1}{2}})}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{1}{2} \cdot 2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5.3

Combine $\frac{1}{2}$ and $2$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5.4

Cancel the common factor of $2$ .

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Step 2.4.2.1.11.2.1.5.4.1

Cancel the common factor.

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5.4.2

Rewrite the expression.

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.5.5

Evaluate the exponent.

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.1.6

Multiply $- 25$ by $6$ .

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.2

Subtract $150$ from $81$ .

$y = \sqrt{\frac{- 69 + 45 \sqrt{6} - 45 \sqrt{6}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.3

Subtract $45 \sqrt{6}$ from $45 \sqrt{6}$ .

$y = \sqrt{\frac{- 69 + 0}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.11.2.4

Add $- 69$ and $0$ .

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12

Simplify terms.

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Step 2.4.2.1.12.1

Multiply $3$ by $3$ .

$y = \sqrt{\frac{- 69}{9}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.2

Cancel the common factor of $- 69$ and $9$ .

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Step 2.4.2.1.12.2.1

Factor $3$ out of $- 69$ .

$y = \sqrt{\frac{3 (- 23)}{9}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.2.2

Cancel the common factors.

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Step 2.4.2.1.12.2.2.1

Factor $3$ out of $9$ .

$y = \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.2.2.2

Cancel the common factor.

$y = \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.2.2.3

Rewrite the expression.

$y = \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.3

Simplify the expression.

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Step 2.4.2.1.12.3.1

Move the negative in front of the fraction.

$y = \sqrt{- \frac{23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.3.2

Rewrite $- 1$ as $i^{2}$ .

$y = \sqrt{i^{2} (\frac{23}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \sqrt{i^{2} (\frac{23}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.12.4

Pull terms out from under the radical.

$y = i \sqrt{\frac{23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = i \sqrt{\frac{23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.13

Rewrite $\sqrt{\frac{23}{3}}$ as $\frac{\sqrt{23}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23}}{\sqrt{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.14

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15

Combine and simplify the denominator.

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Step 2.4.2.1.15.1

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.2

Raise $\sqrt{3}$ to the power of $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.3

Raise $\sqrt{3}$ to the power of $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{1 + 1}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.5

Add $1$ and $1$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{2}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

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Step 2.4.2.1.15.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{{(3^{\frac{1}{2}})}^{2}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{1}{2} \cdot 2}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6.3

Combine $\frac{1}{2}$ and $2$ .

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6.4

Cancel the common factor of $2$ .

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Step 2.4.2.1.15.6.4.1

Cancel the common factor.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6.4.2

Rewrite the expression.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.15.6.5

Evaluate the exponent.

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{23} \sqrt{3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.16

Simplify the numerator.

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Step 2.4.2.1.16.1

Combine using the product rule for radicals.

$y = i (\frac{\sqrt{23 \cdot 3}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.16.2

Multiply $23$ by $3$ .

$y = i (\frac{\sqrt{69}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

$y = i (\frac{\sqrt{69}}{3})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 2.4.2.1.17

Combine $i$ and $\frac{\sqrt{69}}{3}$ .

$y = \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3

Solve the system $y = - \sqrt{(3 + 2 x) (3 - 2 x)}, 2 x^{2} - y^{2} = 16$ .

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Step 3.1

Replace all occurrences of $y$ with $- \sqrt{(3 + 2 x) (3 - 2 x)}$ in each equation.

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Step 3.1.1

Replace all occurrences of $y$ in $2 x^{2} - y^{2} = 16$ with $- \sqrt{(3 + 2 x) (3 - 2 x)}$ .

$2 x^{2} - {(- \sqrt{(3 + 2 x) (3 - 2 x)})}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2

Simplify the left side.

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Step 3.1.2.1

Simplify $2 x^{2} - {(- \sqrt{(3 + 2 x) (3 - 2 x)})}^{2}$ .

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Step 3.1.2.1.1

Simplify each term.

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Step 3.1.2.1.1.1

Apply the product rule to $- \sqrt{(3 + 2 x) (3 - 2 x)}$ .

$2 x^{2} - ({(- 1)}^{2} {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.2

Multiply $- 1$ by ${(- 1)}^{2}$ by adding the exponents.

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Step 3.1.2.1.1.2.1

Move ${(- 1)}^{2}$ .

$2 x^{2} + {(- 1)}^{2} \cdot (- 1 {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.2.2

Multiply ${(- 1)}^{2}$ by $- 1$ .

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Step 3.1.2.1.1.2.2.1

Raise $- 1$ to the power of $1$ .

$2 x^{2} + {(- 1)}^{2} \cdot ((- 1) {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.2.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$2 x^{2} + {(- 1)}^{2 + 1} {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} + {(- 1)}^{2 + 1} {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.2.3

Add $2$ and $1$ .

$2 x^{2} + {(- 1)}^{3} {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} + {(- 1)}^{3} {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.3

Raise $- 1$ to the power of $3$ .

$2 x^{2} - {\sqrt{(3 + 2 x) (3 - 2 x)}}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4

Rewrite ${\sqrt{(3 + 2 x) (3 - 2 x)}}^{2}$ as $(3 + 2 x) (3 - 2 x)$ .

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Step 3.1.2.1.1.4.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{(3 + 2 x) (3 - 2 x)}$ as ${((3 + 2 x) (3 - 2 x))}^{\frac{1}{2}}$ .

$2 x^{2} - {({((3 + 2 x) (3 - 2 x))}^{\frac{1}{2}})}^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{1}{2} \cdot 2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4.3

Combine $\frac{1}{2}$ and $2$ .

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{2}{2}} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4.4

Cancel the common factor of $2$ .

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Step 3.1.2.1.1.4.4.1

Cancel the common factor.

$2 x^{2} - {((3 + 2 x) (3 - 2 x))}^{\frac{2}{2}} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4.4.2

Rewrite the expression.

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.4.5

Simplify.

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - ((3 + 2 x) (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.5

Expand $(3 + 2 x) (3 - 2 x)$ using the FOIL Method.

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Step 3.1.2.1.1.5.1

Apply the distributive property.

$2 x^{2} - (3 (3 - 2 x) + 2 x (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.5.2

Apply the distributive property.

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x (3 - 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.5.3

Apply the distributive property.

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.6

Combine the opposite terms in $3 \cdot 3 + 3 (- 2 x) + 2 x \cdot 3 + 2 x (- 2 x)$ .

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Step 3.1.2.1.1.6.1

Reorder the factors in the terms $3 (- 2 x)$ and $2 x \cdot 3$ .

$2 x^{2} - (3 \cdot 3 - 2 \cdot (3 x) + 2 \cdot (3 x) + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.6.2

Add $- 2 \cdot 3 x$ and $2 \cdot 3 x$ .

$2 x^{2} - (3 \cdot 3 + 0 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.6.3

Add $3 \cdot 3$ and $0$ .

$2 x^{2} - (3 \cdot 3 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (3 \cdot 3 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.7

Simplify each term.

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Step 3.1.2.1.1.7.1

Multiply $3$ by $3$ .

$2 x^{2} - (9 + 2 x (- 2 x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.7.2

Rewrite using the commutative property of multiplication.

$2 x^{2} - (9 + 2 \cdot (- 2 x \cdot x)) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.7.3

Multiply $x$ by $x$ by adding the exponents.

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Step 3.1.2.1.1.7.3.1

Move $x$ .

$2 x^{2} - (9 + 2 \cdot (- 2 (x \cdot x))) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.7.3.2

Multiply $x$ by $x$ .

$2 x^{2} - (9 + 2 \cdot (- 2 x^{2})) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (9 + 2 \cdot (- 2 x^{2})) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.7.4

Multiply $2$ by $- 2$ .

$2 x^{2} - (9 - 4 x^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - (9 - 4 x^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.8

Apply the distributive property.

$2 x^{2} - 1 \cdot 9 - (- 4 x^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.9

Multiply $- 1$ by $9$ .

$2 x^{2} - 9 - (- 4 x^{2}) = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.1.10

Multiply $- 4$ by $- 1$ .

$2 x^{2} - 9 + 4 x^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$2 x^{2} - 9 + 4 x^{2} = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.1.2.1.2

Add $2 x^{2}$ and $4 x^{2}$ .

$6 x^{2} - 9 = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} - 9 = 16$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2

Solve for $x$ in $6 x^{2} - 9 = 16$ .

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Step 3.2.1

Move all terms not containing $x$ to the right side of the equation.

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Step 3.2.1.1

Add $9$ to both sides of the equation.

$6 x^{2} = 16 + 9$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.1.2

Add $16$ and $9$ .

$6 x^{2} = 25$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$6 x^{2} = 25$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.2

Divide each term in $6 x^{2} = 25$ by $6$ and simplify.

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Step 3.2.2.1

Divide each term in $6 x^{2} = 25$ by $6$ .

$\frac{6 x^{2}}{6} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.2.2

Simplify the left side.

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Step 3.2.2.2.1

Cancel the common factor of $6$ .

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Step 3.2.2.2.1.1

Cancel the common factor.

$\frac{6 x^{2}}{6} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.2.2.1.2

Divide $x^{2}$ by $1$ .

$x^{2} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x^{2} = \frac{25}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.3

Take the specified root of both sides of the equation to eliminate the exponent on the left side.

$x = \pm \sqrt{\frac{25}{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4

Simplify $\pm \sqrt{\frac{25}{6}}$ .

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Step 3.2.4.1

Rewrite $\sqrt{\frac{25}{6}}$ as $\frac{\sqrt{25}}{\sqrt{6}}$ .

$x = \pm \frac{\sqrt{25}}{\sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.2

Simplify the numerator.

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Step 3.2.4.2.1

Rewrite $25$ as $5^{2}$ .

$x = \pm \frac{\sqrt{5^{2}}}{\sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.2.2

Pull terms out from under the radical, assuming positive real numbers.

$x = \pm \frac{5}{\sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5}{\sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.3

Multiply $\frac{5}{\sqrt{6}}$ by $\frac{\sqrt{6}}{\sqrt{6}}$ .

$x = \pm \frac{5}{\sqrt{6}} \cdot \frac{\sqrt{6}}{\sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4

Combine and simplify the denominator.

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Step 3.2.4.4.1

Multiply $\frac{5}{\sqrt{6}}$ by $\frac{\sqrt{6}}{\sqrt{6}}$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$x = \pm \frac{5 \sqrt{6}}{\sqrt{6} \sqrt{6}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$x = \pm \frac{5 \sqrt{6}}{{\sqrt{6}}^{1 + 1}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.5

Add $1$ and $1$ .

$x = \pm \frac{5 \sqrt{6}}{{\sqrt{6}}^{2}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 3.2.4.4.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$x = \pm \frac{5 \sqrt{6}}{{(6^{\frac{1}{2}})}^{2}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{1}{2} \cdot 2}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6.3

Combine $\frac{1}{2}$ and $2$ .

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{2}{2}}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6.4

Cancel the common factor of $2$ .

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Step 3.2.4.4.6.4.1

Cancel the common factor.

$x = \pm \frac{5 \sqrt{6}}{6^{\frac{2}{2}}}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6.4.2

Rewrite the expression.

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.4.4.6.5

Evaluate the exponent.

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \pm \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.5

The complete solution is the result of both the positive and negative portions of the solution.

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Step 3.2.5.1

First, use the positive value of the $\pm$ to find the first solution.

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.5.2

Next, use the negative value of the $\pm$ to find the second solution.

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.2.5.3

The complete solution is the result of both the positive and negative portions of the solution.

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

$x = \frac{5 \sqrt{6}}{6}, - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + 2 x) (3 - 2 x)}$

Step 3.3

Replace all occurrences of $x$ with $\frac{5 \sqrt{6}}{6}$ in each equation.

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Step 3.3.1

Replace all occurrences of $x$ in $y = - \sqrt{(3 + 2 x) (3 - 2 x)}$ with $\frac{5 \sqrt{6}}{6}$ .

$y = - \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{6})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2

Simplify the right side.

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Step 3.3.2.1

Simplify $- \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{6})) (3 - 2 \frac{5 \sqrt{6}}{6})}$ .

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Step 3.3.2.1.1

Cancel the common factor of $2$ .

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Step 3.3.2.1.1.1

Factor $2$ out of $6$ .

$y = - \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{2 (3)})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.1.2

Cancel the common factor.

$y = - \sqrt{(3 + 2 (\frac{5 \sqrt{6}}{2 \cdot 3})) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.1.3

Rewrite the expression.

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{5 \sqrt{6}}{6})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.2

Cancel the common factor of $2$ .

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Step 3.3.2.1.2.1

Factor $2$ out of $- 2$ .

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 (- 1) (\frac{5 \sqrt{6}}{6}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.2.2

Factor $2$ out of $6$ .

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{5 \sqrt{6}}{2 \cdot 3}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.2.3

Cancel the common factor.

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{5 \sqrt{6}}{2 \cdot 3}))}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.2.4

Rewrite the expression.

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.3

Rewrite $- 1 \frac{5 \sqrt{6}}{3}$ as $- \frac{5 \sqrt{6}}{3}$ .

$y = - \sqrt{(3 + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.4

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = - \sqrt{(3 \cdot \frac{3}{3} + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.5

Combine $3$ and $\frac{3}{3}$ .

$y = - \sqrt{(\frac{3 \cdot 3}{3} + \frac{5 \sqrt{6}}{3}) (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.6

Simplify the expression.

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Step 3.3.2.1.6.1

Combine the numerators over the common denominator.

$y = - \sqrt{\frac{3 \cdot 3 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.6.2

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.7

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (3 \cdot \frac{3}{3} - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.8

Combine fractions.

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Step 3.3.2.1.8.1

Combine $3$ and $\frac{3}{3}$ .

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot (\frac{3 \cdot 3}{3} - \frac{5 \sqrt{6}}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.8.2

Simplify the expression.

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Step 3.3.2.1.8.2.1

Combine the numerators over the common denominator.

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{3 \cdot 3 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.8.2.2

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{9 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 + 5 \sqrt{6}}{3} \cdot \frac{9 - 5 \sqrt{6}}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.8.3

Multiply $\frac{9 + 5 \sqrt{6}}{3}$ by $\frac{9 - 5 \sqrt{6}}{3}$ .

$y = - \sqrt{\frac{(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9

Simplify the numerator.

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Step 3.3.2.1.9.1

Expand $(9 + 5 \sqrt{6}) (9 - 5 \sqrt{6})$ using the FOIL Method.

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Step 3.3.2.1.9.1.1

Apply the distributive property.

$y = - \sqrt{\frac{9 (9 - 5 \sqrt{6}) + 5 \sqrt{6} (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.1.2

Apply the distributive property.

$y = - \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} (9 - 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.1.3

Apply the distributive property.

$y = - \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 \cdot 9 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2

Simplify and combine like terms.

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Step 3.3.2.1.9.2.1

Simplify each term.

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Step 3.3.2.1.9.2.1.1

Multiply $9$ by $9$ .

$y = - \sqrt{\frac{81 + 9 (- 5 \sqrt{6}) + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.2

Multiply $- 5$ by $9$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 5 \sqrt{6} \cdot 9 + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.3

Multiply $9$ by $5$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} + 5 \sqrt{6} (- 5 \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.4

Multiply $5 \sqrt{6} (- 5 \sqrt{6})$ .

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Step 3.3.2.1.9.2.1.4.1

Multiply $- 5$ by $5$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \sqrt{6} \sqrt{6}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{1 + 1}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.4.5

Add $1$ and $1$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 3.3.2.1.9.2.1.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 {(6^{\frac{1}{2}})}^{2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{1}{2} \cdot 2}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5.3

Combine $\frac{1}{2}$ and $2$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5.4

Cancel the common factor of $2$ .

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Step 3.3.2.1.9.2.1.5.4.1

Cancel the common factor.

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5.4.2

Rewrite the expression.

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.5.5

Evaluate the exponent.

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.1.6

Multiply $- 25$ by $6$ .

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 - 45 \sqrt{6} + 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.2

Subtract $150$ from $81$ .

$y = - \sqrt{\frac{- 69 - 45 \sqrt{6} + 45 \sqrt{6}}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.3

Add $- 45 \sqrt{6}$ and $45 \sqrt{6}$ .

$y = - \sqrt{\frac{- 69 + 0}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.9.2.4

Add $- 69$ and $0$ .

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10

Simplify terms.

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Step 3.3.2.1.10.1

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{- 69}{9}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.2

Cancel the common factor of $- 69$ and $9$ .

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Step 3.3.2.1.10.2.1

Factor $3$ out of $- 69$ .

$y = - \sqrt{\frac{3 (- 23)}{9}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.2.2

Cancel the common factors.

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Step 3.3.2.1.10.2.2.1

Factor $3$ out of $9$ .

$y = - \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.2.2.2

Cancel the common factor.

$y = - \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.2.2.3

Rewrite the expression.

$y = - \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.3

Simplify the expression.

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Step 3.3.2.1.10.3.1

Move the negative in front of the fraction.

$y = - \sqrt{- \frac{23}{3}}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.3.2

Rewrite $- 1$ as $i^{2}$ .

$y = - \sqrt{i^{2} (\frac{23}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{i^{2} (\frac{23}{3})}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.10.4

Pull terms out from under the radical.

$y = - (i \sqrt{\frac{23}{3}})$

$x = \frac{5 \sqrt{6}}{6}$

$y = - (i \sqrt{\frac{23}{3}})$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.11

Rewrite $\sqrt{\frac{23}{3}}$ as $\frac{\sqrt{23}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23}}{\sqrt{3}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.12

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13

Combine and simplify the denominator.

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Step 3.3.2.1.13.1

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.2

Raise $\sqrt{3}$ to the power of $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.3

Raise $\sqrt{3}$ to the power of $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{1 + 1}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.5

Add $1$ and $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{2}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

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Step 3.3.2.1.13.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{(3^{\frac{1}{2}})}^{2}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{1}{2} \cdot 2}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6.3

Combine $\frac{1}{2}$ and $2$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6.4

Cancel the common factor of $2$ .

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Step 3.3.2.1.13.6.4.1

Cancel the common factor.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6.4.2

Rewrite the expression.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.13.6.5

Evaluate the exponent.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.14

Simplify the numerator.

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Step 3.3.2.1.14.1

Combine using the product rule for radicals.

$y = - (i (\frac{\sqrt{23 \cdot 3}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.14.2

Multiply $23$ by $3$ .

$y = - (i (\frac{\sqrt{69}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{69}}{3}))$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.3.2.1.15

Combine $i$ and $\frac{\sqrt{69}}{3}$ .

$y = - \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = \frac{5 \sqrt{6}}{6}$

Step 3.4

Replace all occurrences of $x$ with $- \frac{5 \sqrt{6}}{6}$ in each equation.

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Step 3.4.1

Replace all occurrences of $x$ in $y = - \sqrt{(3 + 2 x) (3 - 2 x)}$ with $- \frac{5 \sqrt{6}}{6}$ .

$y = - \sqrt{(3 + 2 (- \frac{5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2

Simplify the right side.

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Step 3.4.2.1

Simplify $- \sqrt{(3 + 2 (- \frac{5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$ .

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Step 3.4.2.1.1

Cancel the common factor of $2$ .

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Step 3.4.2.1.1.1

Move the leading negative in $- \frac{5 \sqrt{6}}{6}$ into the numerator.

$y = - \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{6})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.1.2

Factor $2$ out of $6$ .

$y = - \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{2 (3)})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.1.3

Cancel the common factor.

$y = - \sqrt{(3 + 2 (\frac{- 5 \sqrt{6}}{2 \cdot 3})) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.1.4

Rewrite the expression.

$y = - \sqrt{(3 + \frac{- 5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 + \frac{- 5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.2

Move the negative in front of the fraction.

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 2 (- \frac{5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.3

Cancel the common factor of $2$ .

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Step 3.4.2.1.3.1

Move the leading negative in $- \frac{5 \sqrt{6}}{6}$ into the numerator.

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 2 \frac{- 5 \sqrt{6}}{6})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.3.2

Factor $2$ out of $- 2$ .

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 (- 1) (\frac{- 5 \sqrt{6}}{6}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.3.3

Factor $2$ out of $6$ .

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{- 5 \sqrt{6}}{2 \cdot 3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.3.4

Cancel the common factor.

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 2 \cdot (- 1 \frac{- 5 \sqrt{6}}{2 \cdot 3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.3.5

Rewrite the expression.

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{- 5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 \frac{- 5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.4

Move the negative in front of the fraction.

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 - 1 (- \frac{5 \sqrt{6}}{3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.5

Multiply $- 1 (- \frac{5 \sqrt{6}}{3})$ .

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Step 3.4.2.1.5.1

Multiply $- 1$ by $- 1$ .

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + 1 (\frac{5 \sqrt{6}}{3}))}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.5.2

Multiply $\frac{5 \sqrt{6}}{3}$ by $1$ .

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{(3 - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.6

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = - \sqrt{(3 \cdot \frac{3}{3} - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.7

Combine $3$ and $\frac{3}{3}$ .

$y = - \sqrt{(\frac{3 \cdot 3}{3} - \frac{5 \sqrt{6}}{3}) (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.8

Simplify the expression.

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Step 3.4.2.1.8.1

Combine the numerators over the common denominator.

$y = - \sqrt{\frac{3 \cdot 3 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.8.2

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.9

To write $3$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (3 \cdot \frac{3}{3} + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.10

Combine fractions.

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Step 3.4.2.1.10.1

Combine $3$ and $\frac{3}{3}$ .

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot (\frac{3 \cdot 3}{3} + \frac{5 \sqrt{6}}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.10.2

Simplify the expression.

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Step 3.4.2.1.10.2.1

Combine the numerators over the common denominator.

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{3 \cdot 3 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.10.2.2

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{9 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 - 5 \sqrt{6}}{3} \cdot \frac{9 + 5 \sqrt{6}}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.10.3

Multiply $\frac{9 - 5 \sqrt{6}}{3}$ by $\frac{9 + 5 \sqrt{6}}{3}$ .

$y = - \sqrt{\frac{(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11

Simplify the numerator.

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Step 3.4.2.1.11.1

Expand $(9 - 5 \sqrt{6}) (9 + 5 \sqrt{6})$ using the FOIL Method.

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Step 3.4.2.1.11.1.1

Apply the distributive property.

$y = - \sqrt{\frac{9 (9 + 5 \sqrt{6}) - 5 \sqrt{6} (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.1.2

Apply the distributive property.

$y = - \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} (9 + 5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.1.3

Apply the distributive property.

$y = - \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{9 \cdot 9 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2

Simplify and combine like terms.

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Step 3.4.2.1.11.2.1

Simplify each term.

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Step 3.4.2.1.11.2.1.1

Multiply $9$ by $9$ .

$y = - \sqrt{\frac{81 + 9 (5 \sqrt{6}) - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.2

Multiply $5$ by $9$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 5 \sqrt{6} \cdot 9 - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.3

Multiply $9$ by $- 5$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 5 \sqrt{6} (5 \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.4

Multiply $- 5 \sqrt{6} (5 \sqrt{6})$ .

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Step 3.4.2.1.11.2.1.4.1

Multiply $5$ by $- 5$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \sqrt{6} \sqrt{6}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.4.2

Raise $\sqrt{6}$ to the power of $1$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.4.3

Raise $\sqrt{6}$ to the power of $1$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 (\sqrt{6} \sqrt{6})}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.4.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{1 + 1}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.4.5

Add $1$ and $1$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {\sqrt{6}}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5

Rewrite ${\sqrt{6}}^{2}$ as $6$ .

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Step 3.4.2.1.11.2.1.5.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{6}$ as $6^{\frac{1}{2}}$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 {(6^{\frac{1}{2}})}^{2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{1}{2} \cdot 2}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5.3

Combine $\frac{1}{2}$ and $2$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5.4

Cancel the common factor of $2$ .

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Step 3.4.2.1.11.2.1.5.4.1

Cancel the common factor.

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6^{\frac{2}{2}}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5.4.2

Rewrite the expression.

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.5.5

Evaluate the exponent.

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 25 \cdot 6}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.1.6

Multiply $- 25$ by $6$ .

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{81 + 45 \sqrt{6} - 45 \sqrt{6} - 150}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.2

Subtract $150$ from $81$ .

$y = - \sqrt{\frac{- 69 + 45 \sqrt{6} - 45 \sqrt{6}}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.3

Subtract $45 \sqrt{6}$ from $45 \sqrt{6}$ .

$y = - \sqrt{\frac{- 69 + 0}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.11.2.4

Add $- 69$ and $0$ .

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 69}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12

Simplify terms.

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Step 3.4.2.1.12.1

Multiply $3$ by $3$ .

$y = - \sqrt{\frac{- 69}{9}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.2

Cancel the common factor of $- 69$ and $9$ .

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Step 3.4.2.1.12.2.1

Factor $3$ out of $- 69$ .

$y = - \sqrt{\frac{3 (- 23)}{9}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.2.2

Cancel the common factors.

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Step 3.4.2.1.12.2.2.1

Factor $3$ out of $9$ .

$y = - \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.2.2.2

Cancel the common factor.

$y = - \sqrt{\frac{3 \cdot - 23}{3 \cdot 3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.2.2.3

Rewrite the expression.

$y = - \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{\frac{- 23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.3

Simplify the expression.

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Step 3.4.2.1.12.3.1

Move the negative in front of the fraction.

$y = - \sqrt{- \frac{23}{3}}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.3.2

Rewrite $- 1$ as $i^{2}$ .

$y = - \sqrt{i^{2} (\frac{23}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \sqrt{i^{2} (\frac{23}{3})}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.12.4

Pull terms out from under the radical.

$y = - (i \sqrt{\frac{23}{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - (i \sqrt{\frac{23}{3}})$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.13

Rewrite $\sqrt{\frac{23}{3}}$ as $\frac{\sqrt{23}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23}}{\sqrt{3}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.14

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15

Combine and simplify the denominator.

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Step 3.4.2.1.15.1

Multiply $\frac{\sqrt{23}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.2

Raise $\sqrt{3}$ to the power of $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.3

Raise $\sqrt{3}$ to the power of $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{\sqrt{3} \sqrt{3}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{1 + 1}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.5

Add $1$ and $1$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{\sqrt{3}}^{2}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

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Step 3.4.2.1.15.6.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{{(3^{\frac{1}{2}})}^{2}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{1}{2} \cdot 2}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6.3

Combine $\frac{1}{2}$ and $2$ .

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6.4

Cancel the common factor of $2$ .

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Step 3.4.2.1.15.6.4.1

Cancel the common factor.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3^{\frac{2}{2}}}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6.4.2

Rewrite the expression.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.15.6.5

Evaluate the exponent.

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{23} \sqrt{3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.16

Simplify the numerator.

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Step 3.4.2.1.16.1

Combine using the product rule for radicals.

$y = - (i (\frac{\sqrt{23 \cdot 3}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.16.2

Multiply $23$ by $3$ .

$y = - (i (\frac{\sqrt{69}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - (i (\frac{\sqrt{69}}{3}))$

$x = - \frac{5 \sqrt{6}}{6}$

Step 3.4.2.1.17

Combine $i$ and $\frac{\sqrt{69}}{3}$ .

$y = - \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}$

$x = - \frac{5 \sqrt{6}}{6}$

Step 4

List all of the solutions.

$y = \frac{i \sqrt{69}}{3}, x = \frac{5 \sqrt{6}}{6}$

$y = \frac{i \sqrt{69}}{3}, x = - \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}, x = \frac{5 \sqrt{6}}{6}$

$y = - \frac{i \sqrt{69}}{3}, x = - \frac{5 \sqrt{6}}{6}$

Step 5