Wednesday 5 March 2014

FACTORIZATION C6

Factorize 10x2 - x - 2

Solution

= 10x2 - x - 2. We split the middle term (-x) to be (-5x + 4x).

= 10x2 -5x + 4x - 2.

= (10x2 - 5x) + (4x - 2)    grouping the factors

= 5x(2x – 1) - 2(2x - 1)   

= (5x - 2) (2x - 1)

Hence 10x2 - x – 2 = (5x - 2) (2x - 1) answer.

TRY THIS………………

factorize 15x2 - 13x + 2

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