(t+2)•(t-8)-t^2=t^2-8t+2t-16-t^2=-6t-16
t=-14
-6•(-14)-16=84-16=68
ответ: 68
t²-8t+2t-16-t²=10t-16=-140-16=-156
(t+2)•(t-8)-t^2=t^2-8t+2t-16-t^2=-6t-16
t=-14
-6•(-14)-16=84-16=68
ответ: 68
t²-8t+2t-16-t²=10t-16=-140-16=-156