Basic Math Examples

$\frac{r - 5 {(y^{2} z - 3)}^{2}}{r^{6} y^{7} z^{4}}$

Step 1

Simplify the numerator.

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Step 1.1

Rewrite ${(y^{2} z - 3)}^{2}$ as $(y^{2} z - 3) (y^{2} z - 3)$ .

$\frac{r - 5 ((y^{2} z - 3) (y^{2} z - 3))}{r^{6} y^{7} z^{4}}$

Step 1.2

Expand $(y^{2} z - 3) (y^{2} z - 3)$ using the FOIL Method.

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Step 1.2.1

Apply the distributive property.

$\frac{r - 5 (y^{2} z (y^{2} z - 3) - 3 (y^{2} z - 3))}{r^{6} y^{7} z^{4}}$

Step 1.2.2

Apply the distributive property.

$\frac{r - 5 (y^{2} z (y^{2} z) + y^{2} z \cdot - 3 - 3 (y^{2} z - 3))}{r^{6} y^{7} z^{4}}$

Step 1.2.3

Apply the distributive property.

$\frac{r - 5 (y^{2} z (y^{2} z) + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3

Simplify and combine like terms.

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Step 1.3.1

Simplify each term.

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Step 1.3.1.1

Multiply $y^{2}$ by $y^{2}$ by adding the exponents.

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Step 1.3.1.1.1

Move $y^{2}$ .

$\frac{r - 5 (y^{2} y^{2} z \cdot z + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.1.2

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

$\frac{r - 5 (y^{2 + 2} z \cdot z + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.1.3

Add $2$ and $2$ .

$\frac{r - 5 (y^{4} z \cdot z + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.2

Multiply $z$ by $z$ by adding the exponents.

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Step 1.3.1.2.1

Move $z$ .

$\frac{r - 5 (y^{4} (z \cdot z) + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.2.2

Multiply $z$ by $z$ .

$\frac{r - 5 (y^{4} z^{2} + y^{2} z \cdot - 3 - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.3

Move $- 3$ to the left of $y^{2} z$ .

$\frac{r - 5 (y^{4} z^{2} - 3 \cdot (y^{2} z) - 3 (y^{2} z) - 3 \cdot - 3)}{r^{6} y^{7} z^{4}}$

Step 1.3.1.4

Multiply $- 3$ by $- 3$ .

$\frac{r - 5 (y^{4} z^{2} - 3 y^{2} z - 3 y^{2} z + 9)}{r^{6} y^{7} z^{4}}$

Step 1.3.2

Subtract $3 y^{2} z$ from $- 3 y^{2} z$ .

$\frac{r - 5 (y^{4} z^{2} - 6 y^{2} z + 9)}{r^{6} y^{7} z^{4}}$

Step 1.4

Apply the distributive property.

$\frac{r - 5 (y^{4} z^{2}) - 5 (- 6 y^{2} z) - 5 \cdot 9}{r^{6} y^{7} z^{4}}$

Step 1.5

Simplify.

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Step 1.5.1

Multiply $- 6$ by $- 5$ .

$\frac{r - 5 y^{4} z^{2} + 30 (y^{2} z) - 5 \cdot 9}{r^{6} y^{7} z^{4}}$

Step 1.5.2

Multiply $- 5$ by $9$ .

$\frac{r - 5 y^{4} z^{2} + 30 (y^{2} z) - 45}{r^{6} y^{7} z^{4}}$

Step 1.6

Rewrite $r - 5 y^{4} z^{2} + 30 y^{2} z - 45$ in a factored form.

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Step 1.6.1

Regroup terms.

$\frac{- 45 + r - 5 y^{4} z^{2} + 30 y^{2} z}{r^{6} y^{7} z^{4}}$

Step 1.6.2

Factor $- 1$ out of $r - 5 y^{4} z^{2} + 30 y^{2} z$ .

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Step 1.6.2.1

Move $r$ .

$\frac{- 45 - 5 y^{4} z^{2} + 30 y^{2} z + r}{r^{6} y^{7} z^{4}}$

Step 1.6.2.2

Factor $- 1$ out of $- 5 y^{4} z^{2}$ .

$\frac{- 45 - (5 y^{4} z^{2}) + 30 y^{2} z + r}{r^{6} y^{7} z^{4}}$

Step 1.6.2.3

Factor $- 1$ out of $30 y^{2} z$ .

$\frac{- 45 - (5 y^{4} z^{2}) - (- 30 y^{2} z) + r}{r^{6} y^{7} z^{4}}$

Step 1.6.2.4

Factor $- 1$ out of $r$ .

$\frac{- 45 - (5 y^{4} z^{2}) - (- 30 y^{2} z) - 1 (- r)}{r^{6} y^{7} z^{4}}$

Step 1.6.2.5

Factor $- 1$ out of $- (5 y^{4} z^{2}) - (- 30 y^{2} z)$ .

$\frac{- 45 - (5 y^{4} z^{2} - 30 y^{2} z) - 1 (- r)}{r^{6} y^{7} z^{4}}$

Step 1.6.2.6

Factor $- 1$ out of $- (5 y^{4} z^{2} - 30 y^{2} z) - 1 (- r)$ .

$\frac{- 45 - (5 y^{4} z^{2} - 30 y^{2} z - r)}{r^{6} y^{7} z^{4}}$

Step 1.6.3

Factor $- 1$ out of $- 45 - (5 y^{4} z^{2} - 30 y^{2} z - r)$ .

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Step 1.6.3.1

Reorder $- 45$ and $- (5 y^{4} z^{2} - 30 y^{2} z - r)$ .

$\frac{- (5 y^{4} z^{2} - 30 y^{2} z - r) - 45}{r^{6} y^{7} z^{4}}$

Step 1.6.3.2

Rewrite $- 45$ as $- 1 (45)$ .

$\frac{- (5 y^{4} z^{2} - 30 y^{2} z - r) - 1 (45)}{r^{6} y^{7} z^{4}}$

Step 1.6.3.3

Factor $- 1$ out of $- (5 y^{4} z^{2} - 30 y^{2} z - r) - 1 (45)$ .

$\frac{- (5 y^{4} z^{2} - 30 y^{2} z - r + 45)}{r^{6} y^{7} z^{4}}$

Step 2

Move the negative in front of the fraction.

$- \frac{5 y^{4} z^{2} - 30 y^{2} z - r + 45}{r^{6} y^{7} z^{4}}$