Wednesday 31 December 2014

DIFFERENCE OF 2 SQUARES 2


Factorize 1-w2

Solution

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

1-w2 = 12-w2       

        = (1 - w)(1 + w)

Hence 1-w2 = (1 - w)(1 + w)

TRY THIS…………….


Factorize 9 - c2

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