Wednesday, 26 February 2014

FACTORIZATION C11


Factorize 2x2 - 15x + 7.

Solution

= 2x2 - 15x + 7. We split the middle term (-15x) to be (-x - 14x).

= 2x2 -x - 14x + 7

= (2x2 – x) – (14x + 7)

= x(2x – 1) – 7(2x - 1)

= (x - 7) (2x - 1)

Hence 2x2 - 15x + 7= (x - 7) (2x - 1)answer.



TRY THIS…..


9x2 - 8x - 1.
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