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Factorize \(6x^2 + 7x - 20\)

Mathematics
WAEC 2001

Factorize \(6x^2 + 7x - 20\)

  • A. (6x - 5)(x + 4)
  • B. 2(3x-5)(x+2)
  • C. (3x+4)(2x-5)
  • D. (3x-4)(2x+5)
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Correct Answer: Option D
Explanation

\(6x^2 + 7x - 20\)

= \(6x^2 + 15x - 8x - 20\)

= \(3x(2x + 5) - 4(2x + 5)\)

= \((3x - 4)(2x + 5)\)


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