Friday, 25 November 2016

FACTORIZING 9


Factorize 9-w2

Solution

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

9-w2 = 32-w2       

        = (3 - w)(3 + w)

Hence 9-w2 = (3 - w)(3 + w)

TRY THIS…………….



Factorize 49 - c2

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