2 (x - 4) + x*(x + 3)
(x - 4)^2 + x*(x + 3) при x = -2
(x - 4)^2 + x*(x + 3)
((-2) - 4)^2 + (-2)*((-2) + 3)
(-2 - 4)^2 - 2*(-2 + 3)
34
(-4.0 + x)^2 + x*(3.0 + x)
2 16 - 5*x + 2*x