Question

Represent the following expressions as a power of the number a (a≠0):

((a^2)^−2)^5÷(a^4·a)^3

Answer 1

((a^2)^−2)^5÷(a^4·a)^3
= (a^-4)^5÷(a^5)^3
= a^-20 ÷ a^15

you do the last step