state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Quantitative Aptitude Algebra Quadratic Equation
In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains -9 and -1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was
1
x2 + 10x + 9 = 0
2
x2 - 10x + 16 = 0
3
x2 - 10x + 9 = 0
4
None of the above