Question

Someone help, lol I've been tryna do the last too for so long, I think I am just tired...

Answer 1

see explanation

Explanation:

(a)

4 × 4 = 4²

(b)

5 × 5 × 5 × 5 =
`5^(4)`

(c)

3 × 7 × 7 × 7 × 7 = 3 ×
`7^(4)`

(d)

2 × 9 × 9 × 9 × 2 × 9 ← rearrange

= 2 × 2 × 9 × 9 × 9 × 9

= 2² ×
`9^(4)`