Question

a) x(a+b)+a+b

b) ax+ay+2x+2y

c) x²-2y+xy-2x

d) 10ax-5ay-2x+y

Answer 1

\(=\left(a+b\right)\left(x+1\right)\)

Answer 2

\(b,=a\left(x+y\right)+2\left(x+y\right)=\left(a+2\right)\left(x+y\right)\\ c,=x\left(x+y\right)-2\left(x+y\right)=\left(x-2\right)\left(x+y\right)\\ d,=5a\left(2x-y\right)-\left(2x-y\right)=\left(5a-1\right)\left(2x-y\right)\)