MATHEMATICS PROBLEM SOLVER

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Monday, 22 February 2016

FACTORIZATION - 8

Factorize completely ca + cr - ar - a².

Solution

= ca + cr - ar - a².

= (ca + cr) – (ar - a²). [Grouping the factors]

= c(a + r) - a(r + a).

= (a + r)(c - a).

Hence ca + cr - ar - a². = (a + r)((c - a).

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NECTA 1995 QN. 20a

Factorize completely pq + pr - rq - q².

MATHEMATICS PROBLEM SOLVER

Monday, 22 February 2016

FACTORIZATION - 8

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