Предмет: Алгебра, автор: Сашуля221

помогите пожалуйста номер 712 в,г

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Автор ответа: Ртуть3

3m-mk+3k-k^2=m(3-k)+k(3-k)=(m+k)(3-k)
xk-xy-x^2+yk=k(x+y)-x(x+y)=(k-x)(x+y)

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