# How do you simplify -7^2?

Sep 20, 2015

#### Answer:

Exponent before opposite. $- {7}^{2} = - 49$.

#### Explanation:

If we want $\left(- 7\right) \times \left(- 7\right)$, we must write ${\left(- 7\right)}^{2}$.

${\left(- 7\right)}^{2} = 49$