Question

a=_cm,b=_cm.
so,(a+b)=_cm.
A2=_,B2=_,ab=_,(a+b)2=_,2ab+B2.
Therefore ,(a+b)2=A2+2ab+B2

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Answer 1

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Top answer

P + Q = a2 - b2 - 2ab + a2 + 4b2 - 6ab = 2a2 - 8ab + 3b2 P + Q + R = 2a2 - 8ab + 3b2 + b2 + 6 = 2a2 - 8ab + 4b2 + 6 P + Q + R + S = 2a2 - 8ab + 4b2 + ...