Can you help me on this math problem please?

The expression is 1/16 when x = -2, The expression is 64 when x = 3.

Step-by-step explanation:

Part A)

Evaluate 4^x for x = -2. Write your answers in simplest form:

= 4^(-2)

= 1/4^2 ( 1 / 4 * 4)

= 1/16

Part B)

Evaluate 4^x for x = 3. Write your answers in simplest form:

=4 ^ 3

= 4 * 4 * 4

= 16 * 4

= 64

I hope this helps! Make sure to give me the brainliest answer since it is great appreciated. Thank You!

iu

step-by-step explanation: