Pre-Algebra Examples

$\frac{72 x^{7} - 36 x^{5} - 45 x^{3}}{9 x^{3}}$

Step 1

Factor $9 x^{3}$ out of $72 x^{7} - 36 x^{5} - 45 x^{3}$ .

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Step 1.1

Factor $9 x^{3}$ out of $72 x^{7}$ .

$\frac{9 x^{3} (8 x^{4}) - 36 x^{5} - 45 x^{3}}{9 x^{3}}$

Step 1.2

Factor $9 x^{3}$ out of $- 36 x^{5}$ .

$\frac{9 x^{3} (8 x^{4}) + 9 x^{3} (- 4 x^{2}) - 45 x^{3}}{9 x^{3}}$

Step 1.3

Factor $9 x^{3}$ out of $- 45 x^{3}$ .

$\frac{9 x^{3} (8 x^{4}) + 9 x^{3} (- 4 x^{2}) + 9 x^{3} (- 5)}{9 x^{3}}$

Step 1.4

Factor $9 x^{3}$ out of $9 x^{3} (8 x^{4}) + 9 x^{3} (- 4 x^{2})$ .

$\frac{9 x^{3} (8 x^{4} - 4 x^{2}) + 9 x^{3} (- 5)}{9 x^{3}}$

Step 1.5

Factor $9 x^{3}$ out of $9 x^{3} (8 x^{4} - 4 x^{2}) + 9 x^{3} (- 5)$ .

$\frac{9 x^{3} (8 x^{4} - 4 x^{2} - 5)}{9 x^{3}}$

Step 2

Cancel the common factor of $9$ .

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Step 2.1

Cancel the common factor.

$\frac{9 x^{3} (8 x^{4} - 4 x^{2} - 5)}{9 x^{3}}$

Step 2.2

Rewrite the expression.

$\frac{x^{3} (8 x^{4} - 4 x^{2} - 5)}{x^{3}}$

Step 3

Cancel the common factor of $x^{3}$ .

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Step 3.1

Cancel the common factor.

$\frac{x^{3} (8 x^{4} - 4 x^{2} - 5)}{x^{3}}$

Step 3.2

Divide $8 x^{4} - 4 x^{2} - 5$ by $1$ .

$8 x^{4} - 4 x^{2} - 5$