Question

помогите упростить
г) m(k-3)-k(m-5)
д )a(1-b)-a(1+b)
е )b(2d-5)-b(d+5)

Answer 1

г)=mk-3m-mk+5k=5k-3m;
д)=а-ab-a-ab=-2ab;
е)=2bd-5b-bd-5b=bd-10b;