Question

Simplify the following expression. (5^7)^2 A. 5^72 B. 5^9 C. 5^14 D. 5^5

Answer 1

5^14

Explanation:

We use the laws of indices:

When there is a power outside the bracket multiply the powers.

(a^m)^n=a^m×n

So (5^7)^2=

5^7×2

5^14