Вычислите ,номер 277)

а) 6^2 - 5^2 + 3^2 - 2^2 = 36 - 25 + 9 - 4 = 16 = 4^2 б) 1^3 + 2^2 + 3^1 - 2^3 = 1 +4 + 3 - 8 = 0 в) (8^2 : 16 - 2)^2 + 2^3 = (64 : 16 - 2)^2 + 8 = 2^2 + 8 = 4 + 8 = 12 г) (9^2 : 27 - 2) * 5^2 = (81 : 27 - 2) * 25 = 1 * 25 = 25 = 5^2