Simplify (x + y + z)2 + (x - y - z)2
Answers
Answered by
1
Answer:
= (2x + 2y + 2z) + (2x - 2y - 2z)
= 2x + 2x + 2y - 2y + 2z - 2z
= 4x + 0 + 0
= 4x
Answered by
1
Answer:
( x+y+z)²+(x-y-z)²
x²+y²+z²+2xy+2yz+2xz+x²+y²+z²-2xy+2yz-2xz
2x²+2y²+2z²+4yz
Similar questions