(x+y+z)²=? free points for u......
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Answered by
1
Answer:
X^2+Y^2+Z^2+2XY+2YZ+2ZX
Answered by
0
Answer:
(x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx
Step-by-step explanation:
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