(m+n)^2-(m-n)^2= a)4mn b)-4mn c) 4(m+n) d)4(m-n)
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Answer:
a.) 4mn
Step-by-step explanation:
m square + 2mn +n square -( m square -2mn+n square)
= m square +2mn +n square -m square +2mn-n square
=4mn
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