Question

x²+y²+4x²+2xy-4yz-4xz divided by x+y+2z​

Answer 1

Answer:

X^2+y^2+4z^2+2xy-4yz-4xz/x+y+2z

= (x+y-2z)^2/x+y-2z. because (x+y-z)^2 = x^2+y^2+z^2+2xy-2yz-2xz

Hence answer is x+y-2z