First simplify, then evaluate: (a + 2) ^ 3 + (1-A) (1 + a), where a = - 3 / 4, the gods help

First simplify, then evaluate: (a + 2) ^ 3 + (1-A) (1 + a), where a = - 3 / 4, the gods help

Answer: (a + 2) ^ 2 + (1-A) (1 + a) = a ^ 2 + 4A + 4 + 1-A ^ 2 = 4A + 5 = 4 * (- 3 / 4) + 5 = - 3 + 5 = 2