WAEC Mathematics 2024 Objective — Question 19
Question 19 of 50 from the West African Examinations Council (WAEC) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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19. Find the quadratic equation whose roots are 2/3 and -1.
- A. 3x² + x - 2 = 0Correct
- B. 3x² - x - 2 = 0
- C. 3x² + x + 2 = 0
- D. 3x² + x - 1 = 0
Explanation
Sum of roots = -1/3, product = -2/3; x² + (1/3)x - 2/3 = 0 → 3x² + x - 2 = 0.
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