Precalculus Examples

${(\frac{- 6 x^{7} y^{- 3}}{7 z^{6}})}^{- 1}$

Step 1

Move $y^{- 3}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

${(\frac{- 6 x^{7}}{7 z^{6} y^{3}})}^{- 1}$

Step 2

Move the negative in front of the fraction.

${(- \frac{6 x^{7}}{7 z^{6} y^{3}})}^{- 1}$

Step 3

Change the sign of the exponent by rewriting the base as its reciprocal.

$- \frac{7 z^{6} y^{3}}{6 x^{7}}$