(m+n)×(m+n)-(m-n)×(m-n)=?
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m2+n2+2mn-m2-n2+2mn=4mn ans
or
(m+n+m-n)(m+n-(m-n)){ on a2-b2=(a+b)(a-b)}
(2m)(2n)=4mn ans
pls mark it as brainliest
or
(m+n+m-n)(m+n-(m-n)){ on a2-b2=(a+b)(a-b)}
(2m)(2n)=4mn ans
pls mark it as brainliest
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