Question

Simplify the expressions below

a. (y^3)^2y^4 b. (z^-3)^-2z^3

Answer 1

When you raise a exponent to an exponent, multiply exponents.
When you multiply powers with the same base add exponents.

a. (y^3)^2y^4 = y^6y^4 = y^10

b. (z^-3)^-2z^3 = z^6z^3 = z^9