Question

Rational Expression

x^2+xz+xy+yz/ x-y /(divide) x+z/x+y

little lost on the final answer is (x+y)^2/ x-y but instead I only get this answer: x+y(x+z)/x-y X x+y/1

x^2+xz+xy+yz/ x-y /(divide) x+z/x+y
(x^2+xz) + (xy + yz)/ x-y X x+z/x+y
x(x+z) + y(x+z)/ x-y X x+z/x+y