Question

a) 2a+2n+ax+nx

b) 3a-3b+ax-bx

Answer 1

2a+2n+ax+nx=

2(a+n) + x( a+n)=(2+x)(a+n) 

3a - 3b + ax - bx 
= 3(a - b) + x (a - b) 
= (3 + x)(a - b)

Answer 2

a) 2a+2n+ax+nx = 2a+ax+2n+nx =a(2+x)+n(2+x) = (2+x)(a+n)


b) 3a-3b+ax-bx = 3a+ax-3b-bx = a(3+x) -b(3+x) =(3+x) (a-b)