Question

1) a³x+a2(x-y)-a(y+z)-z

2) ax+by+bx+az+ay+bz

3) x²+xy-x-y

4) 5xy+7y-5y²-7x

5) a²b-ab²+3a-3b​

Answer 1

Step-by-step explanation:

3)x^2+xy-x-y

=x(x+y)-1(x+y)

=(x+y)(x-1)