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WAEC Mathematics 1991 (August) Question 7

Question 7

Algebraic Expressions

Factorize: 3a2 − 11a + 6

  1. A.(3a − 2)(a − 3)
  2. B.(2a − 2)(a − 3)
  3. C.(3a − 2)(a + 3)
  4. D.(3a + 2)(a − 3)
  5. E.(2a − 3)(a + 2)
Show the answer and explanation

Answer: A ((3a − 2)(a − 3))

Explanation

(3a − 2)(a − 3) = 3a2 − 9a − 2a + 6 = 3a2 − 11a + 6.