а) = (3*5(5-3))^2 = (15*2)^2 = 30^2 = 900
b) = (4*25-6*4*2)-3^3 = 4(25-12)-3^3 = 4*13-27 = 52-27 = 25
а) = (3*5(5-3))^2 = (15*2)^2 = 30^2 = 900
b) = (4*25-6*4*2)-3^3 = 4(25-12)-3^3 = 4*13-27 = 52-27 = 25