пишу сразу ответ
а) =x^2(y-b)-ax(y-b)=(y-b)x(x-a)
b) =m^3(n-2)+m(n-2)=(n-2)m(m^2+1)
в) =2ab(3a+7b)-3ac(3c+7b)=(3c+7b)a(2b-3c)
г) =3xy^2(5x-8y)-2xz(5x-8y)=(5x-8y)x(3y^2-2z)
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пишу сразу ответ
а) =x^2(y-b)-ax(y-b)=(y-b)x(x-a)
b) =m^3(n-2)+m(n-2)=(n-2)m(m^2+1)
в) =2ab(3a+7b)-3ac(3c+7b)=(3c+7b)a(2b-3c)
г) =3xy^2(5x-8y)-2xz(5x-8y)=(5x-8y)x(3y^2-2z)