2 (x - 2) + 2*x + 2
(x - 2)^2 + 2*x + 2 при x = 4
(x - 2)^2 + 2*x + 2
((4) - 2)^2 + 2*(4) + 2
(4 - 2)^2 + 2*4 + 2
14
2.0 + (-2.0 + x)^2 + 2.0*x
2 6 + x - 2*x