MATHEMATICS PROBLEM SOLVER

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Friday, 14 February 2014

FACTORIZATION C8

Factorize 2x² - 7x - 30.

Solution

= 2x² - 7x – 30. We split the middle term (-7x) to be (-12x + 5x).

= 2x² - 12x + 5x – 30 (-7x =-12x + 5x).

= (2x² -12x) + (5x - 30)

= 2x(x - 6) + 5(x - 6)

= (2x + 5) (x -6)

Hence2x² - 7x – 30 = (2x + 5) (x -6) answer.

TRY THIS…..

Factorize 4x² - 3x – 10.

MATHEMATICS PROBLEM SOLVER

Friday, 14 February 2014

FACTORIZATION C8

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