Question

x²+y²+z²/4+2xy-yz-zx​

Answer 1

Answer:

This is the full answer of your question. You have to also use the property x²+y²+z²/4+2xy-yz-zx = (x+y+z)².

Answer 2

Answer:

this question is in the form of a²+b²+c²+2ab+2bc+2bc=(a+b+c)²

x²+y²+z²/4+2xy-yz-zx