Question

найдите значение выражения x5+x4+x3+x2+x при x= -1​

Answer 1

-1+1-1+1-1=-1

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Answer 2

Ответ:

(-1×5)+(-1×4)+(-1×3)+(-1×2)+(-1)=-5+(-4)+(-3)+(-2)+(-1)=-5-4-3-2-1=-15