Algebra Examples

${(4)}^{2} = 2^{(\frac{1}{2}) x}$

Step 1

Rewrite the equation as $2^{(\frac{1}{2}) x} = 4^{2}$ .

$2^{(\frac{1}{2}) x} = 4^{2}$

Step 2

Create equivalent expressions in the equation that all have equal bases.

$2^{(\frac{1}{2}) x} = 2^{2 \cdot 2}$

Step 3

Since the bases are the same, then two expressions are only equal if the exponents are also equal.

$(\frac{1}{2}) x = 2 \cdot 2$

Step 4

Solve for $x$ .

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Step 4.1

Multiply both sides of the equation by $2$ .

$2 (\frac{1}{2} x) = 2 (2 \cdot 2)$

Step 4.2

Simplify both sides of the equation.

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Step 4.2.1

Simplify the left side.

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Step 4.2.1.1

Simplify $2 (\frac{1}{2} x)$ .

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Step 4.2.1.1.1

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

$2 \frac{x}{2} = 2 (2 \cdot 2)$

Step 4.2.1.1.2

Cancel the common factor of $2$ .

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Step 4.2.1.1.2.1

Cancel the common factor.

$2 \frac{x}{2} = 2 (2 \cdot 2)$

Step 4.2.1.1.2.2

Rewrite the expression.

$x = 2 (2 \cdot 2)$

Step 4.2.2

Simplify the right side.

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Step 4.2.2.1

Multiply $2 (2 \cdot 2)$ .

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Step 4.2.2.1.1

Multiply $2$ by $2$ .

$x = 2 \cdot 4$

Step 4.2.2.1.2

Multiply $2$ by $4$ .

$x = 8$