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Find the roots of the equation y = 3x\(^2\) + x - 7.

Mathematics
WAEC 2025

Find the roots of the equation y = 3x\(^2\) + x - 7.

  • A. 1.4 and -1.7
  • B. 2.0 and -1.9
  • C. 1.0 and -1.2
  • D. 1.1 and -1.3
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Correct Answer: Option A
Explanation

The roots of the equation are the values of x at the point where the graph crosses the x-axis. And this can be read from the graph to be 1.4 and -1.7.

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