MATHEMATICS PROBLEM SOLVER

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Wednesday, 5 March 2014

FACTORIZATION C5

Factorize 3x² - 4x – 7

Solution

= 3x² - 4x – 7. We split the middle term (9x) to be (-7x + 3x).

= 3x² -7x + 3x – 7

= (3x² – 7x) + (3x – 7) grouping the factors

= x(3x – 7) + 1(3x – 7)

= (x + 1) (3x - 7)

Hence 3x² - 4x – 7= (x + 1) (3x - 7) answer.

TRY THIS………………

8x² - 10x – 3

MATHEMATICS PROBLEM SOLVER

Wednesday, 5 March 2014

FACTORIZATION C5

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