engineering recuitment NPCIL Plant Operator Mock Test Quantitative Aptitude Algebra Quadratic Equation
If the roots of the quadratic equation 2x2 – (7m – 2)x + 18 = 0 are equal and m > 0, then find the quadratic equation if one of the roots is ‘m’ and the other is -3.
1
x2 – 9 = 0
2
x2 + x + 6 = 0
3
x2 + x - 6 = 0
4
x2 – 2x + 9 = 0