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JAMB Mathematics 1984 Question 16

Question 16

Algebraic Expressions

Factorize 6x2 − 14x − 12

  1. A.2(x + 3)(3x − 2)
  2. B.6(x − 2)(x + 1)
  3. C.2(x − 3)(3x + 2)
  4. D.6(x + 2)(x − 1)
  5. E.(3x − 4)(2x + 3).
Show the answer and explanation

Answer: C (2(x − 3)(3x + 2))

Explanation

Take out 2: 2(3x² − 7x − 6) = 2(3x + 2)(x − 3).