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Find The quadratic Equation Whose Roots Are -2q And 5q. 

Mathematics
WAEC 2021

Find The quadratic Equation Whose Roots Are -2q And 5q. 

  • A. 3x\(^2\) + 3qx - 10q\(^2\)
  • B. x\(^2\) + 3qx + 10q\(^2\)
  • C. x\(^2\) - 3qx + 10q\(^2\)
  • D. x\(^2\) - 3qx - 10q\(^2\)
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Correct Answer: Option D
Explanation

x\(^2\) - (sum of roots)x + (products of roots) = 0

x\(^2\) - (-2q + 5q) + (-2q * 5q) = 0

x\(^2\) -(3q) + (-10q\(^2\)) = 0

x\(^2\) -3q - 10q\(^2\) = 0


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Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789