Wednesday, 5 March 2014

DIFFERENCE OF 2 SQUARES C5

Evaluate 7802 – 6802

Solution

7802 – 6802 = (780 + 680)( 780 – 680)

                     = (1460)( 100)

                     = 146000


Hence 7802 – 6802 = 146000


TRY THIS.......

Evaluate 8802 – 6802


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