Question

Can you help me please ? im not able to fiqure it out

Answer 1

(7^5 * 7^3)^4 * 7^-2 / 7^-7 * 7^20

= (7^8)^4 * 7^-2 / 7^(-7 + 20)

= 7^32 * 7^-2 / 7^13

= 7^(32 - 2) / 7^13

= 7^30 / 7^13

= 7^(30 - 13)

= 7^17