Объяснение:
(t + 2)⋅(t − 8) − t² =
= t² - 8t + 2t - 16 - t² =
= -6t - 16 или -2(3t + 8),
при t = -8:
2 * (3 * (-8) + 8) = -2 * (-24 + 8) = -2 * (-16) = 32,
t²-8t+2t-16-t²=-6t-16
