Question

What expresión is equal

Answer 1

d

Explanation:

i think

Answer 2

4^4

Explanation:

Working from left to right

4^5 * 4^-7 ÷ 4^-2

We know that a^b * a^c = a^(b+c)

4^5 * 4^-7 = 4^(5-7) = 4^2

4^2 ÷ 4^-2

We know a^b / a^c = a^(b-c)

4^2 ÷ 4^-2 = 4^(2- -2) = 4^(2+2) = 4^4