b3=32 q=2 найти: S7=?

S7 = b3 * (q^4 + q^3 + q^2 + q + 1) = 32 * (2^4 + 2^3 + 2^2 + 2 + 1) = 32 * (16 + 8 + 4 + 2 + 1) = 32 * 31 = 992