b×(b^2 + b-2) - 1(b^2 + b-2)
b^3+b^2-2b-b^2-b+
Ответ : b^3-3b+2
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b×(b^2 + b-2) - 1(b^2 + b-2)
b^3+b^2-2b-b^2-b+
Ответ : b^3-3b+2