Monday, 24 March 2014

DIFFERENCE OF 2 SQUARES C7



Evaluate 6402 – 3602

Solution

6402 – 3602 = (640 + 360)( 640 - 360)

                   = (1000)( 280)

                   = 280000

Hence 6402 – 3602 = 280000


TRY THIS……………………


NECTA 2003 QN. 9a

Evaluate 3652 – 1352

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