Simplify :(x+y+z)2 + (x+y-z)2
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Answered by
1
Answer:
HEY BUDDY HOPE IT HELPS YOU
Step-by-step explanation:
Q. Simplify:
( x + y + z )² + ( x + y - z )²
= x² + y² + z² + 2xy + 2yz + 2zx + x² + y² + z² + 2xy - 2yz - 2zx
= 2x² + 2y² + 2z² + 4xy
= 2 ( x² + y² + z² + 2xy )
The correct answer of the question is
= 2 ( x² + y² + z² + 2xy )
Answered by
1
Answer:
HEY BUDDY HOPE IT HELPS YOU
Step-by-step explanation:
Q. Simplify:
( x + y + z )² + ( x + y - z )²
= x² + y² + z² + 2xy + 2yz + 2zx + x² + y² + z² + 2xy - 2yz - 2zx
= 2x² + 2y² + 2z² + 4xy
= 2 ( x² + y² + z² + 2xy )
The correct answer of the question is
= 2 ( x² + y² + z² + 2xy )
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