Q. 5 C5.0( 1 Vote )

Evaluate the following by using the identities:

542

Answer :

542 = (50 + 4)2


We know that


(a+ b)2 = a2 + b2 + 2a×b


(50 + 4)2 = ((50)2 + (4)2 + 2×50×4)


(50 + 4)2 = 2500 + 16 + 400


542 = 2916


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