Thursday, 9 April 2015

DIFERRENCE OF 2 SQUARES 3




Factorize 16-d2

Solution

We use difference of two squares a2 – b2 = (a - b)(a + b)

16-d2 = 42-d2       

        = (4 - d)(4 + d)

Hence 16-d2 = (4 - d)(4 + d)


TRY THIS…………….


Factorize 49 - c2

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