Question

Please help! I don't get it cause the person that was teaching it had horrible handwriting ;-;

Answer 1

Answer: power of a power

Explanation:

in the expression (x^4)^9, 4 and 9 are powers. 9 is the power of x^4, so you have to multiply 4 by 9 to get x^36. this means it's a power of a power