Monday, 19 May 2014

DIFFERENCE OF 2 SQUARES - 2



Evaluate 23572 – 23472

Solution

23572 – 23472 = (2357 + 2347)( 2357 – 2347)

                     = (4704)( 10)

                     = 47040

Hence 23572 – 23472 = 177040.


TRY THIS…………………

evaluate 89552 – 89452

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