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Solve 6x\(^2\) = 5x - 1

Mathematics
WAEC 2022

Solve 6x\(^2\) = 5x - 1

  • A. x = 2,3
  • B. x = 0,3
  • C. x = \(\frac{1}{2}\), \(\frac{1}{3}\)
  • D. x = \(\frac{1}{2}\), \(\frac{-1}{3}\)
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Correct Answer: Option C
Explanation

6x\(^2\) = 5x - 1

 → 6x\(^2\) - 5x + 1 = 0

Factorization:

factors are -3x and -2x

6x\(^2\) - 3x  -2x  + 1 = 0

(6x\(^2\) - 3x) (-2x  + 1) = 0

3x(2x-1) -1(2x-1) = 0

(3x-1) (2x-1) = 0

x = \(\frac{1}{2}\), \(\frac{1}{3}\)


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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free