a) 2(7 - 7)^2 = 2*0^2 = 2*0 = 0
b) (1^3 + 4 * 2) / 6 = (1 + 8) / 6 = 9 / 6 = 3/2
c) -2^2(6 * 2 - 3) = 4(12 - 3) = 4 * 9 = 36
