Q. 2 B4.7( 3 Votes )

Using a suitable identity, find each of the following products:

(2m + 3) (2m + 3)

Answer :

Given (2m + 3) (2m + 3) = (2m + 3)2


We know that


(a+ b)2 = a2 + b2 + 2a×b


(2m + 3) (2m + 3) = ((2m)2 + 32 + 2× 2m×3)


(2m + 3) (2m + 3)= 4m2 + 9 + 12m


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