Question

розкласти на множники 3m+mk-3n-kn

Answer 1

3m+mk-3n-kn=m(3+k)-n(3+k)=(3+k)(m-n)

Answer 2

3m+mk-3n-kn =  (3m - 3n)+(mk - kn) = 3(m-n)+k(m-n) = (m-n)(3+k)