Tuesday, 7 October 2014

DIFFERENCE OF 2 SQUARES 2


Evaluate 7402 – 6402

Solution

7402 – 6402 = (740 + 640)( 740 – 640)

                    = (1380)( 100)

                    = 138,000

Hence 7402 – 6402 = 138,000


TRY THIS……………………..


Evaluate 7702 – 6702

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