(x +y )² - 2xy
incorrect ans will be reported
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Answer:
x² + y² + 2xy - 2xy = x² + y²
Which is the required ans.
Answered by
1
Answer:
(x +y )² - 2xy
→By the identity (a+b)²= a²+b²+2ab
= x²+y²+2xy - 2xy
→ +2xy and -2xy will cancel out and the answer will
= x²+y²
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