7^3 × 7^-2 = 7^(3 - 2) = 7^1 = 7

2 ÷ 2^-2 = 2 ÷ (1/2^2) = 2 ÷ (1/4) = 2 x 4 = 8

Итак, 7^3 × 7^-2 = 7, а 2 ÷ 2^-2 = 8.