Question

( x+y+z) (x+y-z) solve​

Answer 1

hope it helps you

see the picture at the top

Answer 2

Answer:

As per the identity,

(x+y+z)²= x²+y²+z²+2xy+2yz+2zx

Therefore the answer will be,

(x+y-z)²= x²+y²-z²+2xy-2yz-2zx

Hope it helps