Basic Math Examples

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

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$9 x^{2} \frac{1}{y^{2}}$

Step 2

Multiply $9 x^{2} \frac{1}{y^{2}}$ .

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Step 2.1

Combine $9$ and $\frac{1}{y^{2}}$ .

$x^{2} \frac{9}{y^{2}}$

Step 2.2

Combine $x^{2}$ and $\frac{9}{y^{2}}$ .

$\frac{x^{2} \cdot 9}{y^{2}}$

Step 3

Move $9$ to the left of $x^{2}$ .

$\frac{9 x^{2}}{y^{2}}$