If the sum of the roots of 2x\(^2\) + 5mx + n = 0 is 5, find the value of m.
Sum of roots = \(\frac{-a}{b}\)
= \(\frac{-5m}{2}\) = 5
\(\frac{-5m}{m} = \frac{10}{-5}\)
m = -2
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