If the sum of the roots of 2x\(^2\) + 5mx + n = 0 is 5, find the value of m.

  • A - 2.5
  • B - 2.0
  • C 2.0
  • D 2.5
waec 2020furthermathematics

The correct answer is B. - 2.0

Sum of roots = \(\frac{-a}{b}\) 

= \(\frac{-5m}{2}\) = 5

\(\frac{-5m}{m} = \frac{10}{-5}\)

m = -2

Previous question Next question