Question

Помогите пожалуйста номер 712 в,г

Answer 1

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)

Answer 2

В)
3m-mk+3k-k^2
(3-k)m-k^2+3k
(3-k)(m+k)
г)
xk-xy-x^2+yk
ky+x(k-y)-x^2
(k-x)(y+x)