Add a2 + 2ab +b2 , a2 − 2ab +b2, a2 – b2
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Add a2 + 2ab +b2 , a2 − 2ab +b2, a2 – b2
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Answer:
As we know from the formula
(x+y)
2
=x
2
+2xy+y
2
similarly we need to add b
2
to get whole square, Hence (a+b)
2
=a
2
+2ab+b
2