# How do you simplify (P^-1) (P) (Q^-3)?

Jul 18, 2017

By arranging the equation, you will get ${Q}^{-} 3$

#### Explanation:

$\left(\frac{1}{P}\right) \times \left(P\right) \times \left(\frac{1}{Q} ^ 3\right)$

since ${P}^{-} 1 = \frac{1}{P}$. The first two terms cancel each others.

$\frac{1}{Q} ^ 3$
${Q}^{-} 3$
${Q}^{-} 3$