Question

what 3 expressions are equivalent to - ( -3 / 2 ) ^ -2

Answer 1

First simplify: (-3/2)^(-2) = 1/((-3/2)^2) = 1/(9/4) = 4/9, so the whole expression equals -4/9.

Three equivalent expressions:
1. -4/9
2. -(2/3)^2
3. -1/((-3/2)^2) (which = -1/(9/4) = -4/9)