Wednesday, 5 March 2014

DIFFERENCE OF 2 SQUARES C3

Evaluate 67242 – 67142

Solution

67242 – 67142 = (6724 + 6714)( 6724 – 6714)

                     = (13438)( 10)

                     = 134380


Hence 67242 – 67142 = 134380


TRY THIS........

Evaluate 67352 – 66352

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