Question

simplify the following expression (x+y+z)²(x+y-z)²​

Answer 1

Answer:

hey mate

(x+y+z)² it seems to be an identity

so applying the suitable identity to the question

(a+b+c)²=a²+b²+c²+2(ab+bc+ca)

(x+y+z)²=x²+y²+z²+2(xy+yz+zx)

while in ,

{x+y+( - z) }²=x²+y²-z²+2(xy-yz-zx)

and firther on multiply both if you want.....

hope it will help you....✌