Question

Evaluate the following expression for y = - 2.
- 3
y

Answer 1

-1/8

Explanation:

The given expression is y⁻³

We want to find the value of the expression when y = -2

Thus;

At y = -2, we have; -2⁻³

According to law of exponents, x⁻⁴ = 1/x⁴

Thus; -2⁻³ = -1/2³ = -1/8