pz answer friends pz
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mujhe maths padhna nhi aatyaar
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(a+b)2=(a+b)(a+b)
=a (a+b)+b (a+b)
=a*2+ab+ba+b*2
=a*2+ab+ab+b*2(since ab= ba)
=a*2+2ab+b*2
thus (a+b)*2=a*2+2ab+b*2
I can't understand which question you asked ,but I think for 1st and given answer to it .
Hope it helps to you my friend!
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