Ответ:
a) (3)^2 + (7)^2 = 9 + 49 = 58
б) (5*10^-5)^2 - (2*10^-3)^2 = 25*10^-10 - 4*10^-6 = 0.00000025 - 0.000004 = -0.00000375
в) (2*10^-6)^2 + (11)^2 = 4*10^-12 + 121 = 121
г) (4*10^-5)^3 - (3*10^1)^2 = 64*10^-15 - 9*10^2 = 0.000000000000064 - 900 = -900
