defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Algebra Quadratic Equation
mx2 - 2x + 4 = 0 and x2 - 4x + n = 0 have common root 3. Then n - m =
1
\(\frac{17}{9}\)
2
\(\frac{25}{9}\)
3
\(\frac{14}{5}\)
4
\(\frac{12}{5}\)