Saturday, 30 January 2016

DIFFERENCE OF 2 SQUARES 1


Evaluate 27972 – 27872

Solution

27972 – 27872 = (2797 + 2787)( 2797 – 2787)

                     = (5584)( 10)

                     = 55840

Hence 27972 – 27872 = 55840

TRY THIS…………….



Evaluate 9362 – 8362

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