railway RRB Junior Stenographer (Ministerial and Isolated Categories) Mock Test Quantitative Aptitude Algebra Quadratic Equation
Select the quadratic equation whose sum of roots is 4 and product of roots is 1.
1
x2 - 5x - 1 = 0
2
x2 - 4x - 1 = 0
3
x2 - 4x + 1 = 0
4
x2 + 4x + 1 = 0