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(a+b)²-2ab.....
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Answered by
3
a^2 + b^2 =(a+b)^2 =a^2 +b^2+2ab . HOPE IT WILL HELP.
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0
a^2+b^2=(a+b)^2-2ab
or
(a-b)^2+2ab
or
(a-b)^2+2ab
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