Question

15х + 10y;
a2 – ab;
n(7-m) + k(7–m);
8m2n – 4mn3 ;
a(b-c)+3(c-b).

Answer 1

1.5(3х+2у)

2.a*(2-b)

3.(7-m)*(n+k)

4.16mn-12mn=4mn

5.(b-c)*(a-3)