engineering recuitment HPCL Junior Executive 2025 Mock Test Quantitative Aptitude Algebra Quadratic Equation
If 2x2 + 5x + 1 = 0, then one of the values of \(x - \frac{1}{{2x}}\) is:
1
\(\frac{{\sqrt {13} }}{2}\)
2
\(\frac{{ {13} }}{2}\)
3
\(\frac{{\sqrt {17} }}{2}\)
4
\(\frac{{ {5} }}{2}\)