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(4-t) ^3-t * (t-3) * (t+2) - 64-t^2+2t

Применяем способ группировки

(4-t) ³-t· (t-3) · (t+2) - 64-t²+2t = (4-t) ³-64 - t· (t-3) · (t+2) - (t²-2t) =

= (4-t) ³-4³ - t· (t-3) · (t+2) - (t²-2t) = (4-t-4) · ((4-t) ²+4 (4-t) + 16) - t· (t-3) · (t+2) - t· (t-2) =

=-t· (16-8t+t²+16-4t+16) - t· (t-3) · (t+2) - t· (t-2) = t (t²-12t+48) - t· (t²-t-6) - t· (t-2) =

=t· (t²-12t+48-t²+t+6-t+2) = t· (-12t+56) = - 4t· (3t-14)