Предмет: Алгебра, автор: kykyzik352

Розкрити дужки: 1) 5b(b² – b +3); 2) (m – 4)(р + 5) ; 3) (х + у)²– (х + у)(х – у)

Ответы

Автор ответа: poncikalyj

1

Ответ:

1)5b^3-5b^2+15b

2)mp+5m-4p-20

3)x^2+2xy+y^2-x^2+xy-xy+y^2=2xy+2y^2

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