Question

Evaluate x^-2 for x = -3.

Answer 1

F(x)=(x)^(-2)
f(-3)=(-3)^(-2)
f(-3)=(9)^(-1)
f(-3)=(1/9)

Answer 2

$x^{-2}= \cfrac{1}{x^2}= \cfrac{1}{(-3)^2} = \cfrac{1}{9}$