Предмет: Алгебра, автор: Kislyak

как преобразовать в многочлен? (3х-4y)во 2 степени минус (2х7y)(4x+2y)

Ответы

Автор ответа: Nik133

(3х-4y)^2-(2х7y)(4x+2y)=9x-24xy+16y^2-(14xy)(4x+2y)=9x-24xy+16y^2-(56x^2y+28xy^2)=9x-24xy+16y^2-56x^2y-28xy^2

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