Question

Which expressions are equivalent to 7^{-2} times 7^{6}

Answer 1

(7^2)^2

Explanation:

(7^-2)*(7^6)=7^-2+6

......since the base 7 is the same, when u multiply them, you should add the exponents and keep 7 as it is. That will be 7^4, which in equivalent to ans D(7^2)^2