Thursday 1 January 2015

FACTORIZATION 4


Factorize 625 - y2.

solution

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

625 - y2 = 252- y2

          = (25 - y)(25 + y)

Hence 16 - y2 = (25 - y)(25 + y)

TRY THIS…………….


factorize 144 - w2

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