8(a + 2) + 3|b - 3| + 16(c + 0.5) = 0 因为8(a + 2) ≥ 0,3|b - 3| ≥ 0,16(c + 0.5) ≥ 0 所以8(a + 2) = 0,3|b - 3| = 0,16(c + 0.5) = 0 所以a = -2,b = 3,c = -0.5 所以(a^b +2c) = ((-2)^3 + 2 × (-0.5)) = ...