If one of the roots of the quadratic equation $x^{2}-ax-8=0$ is $-4$,then $a = \ldots \ldots \ldots \ldots$.
- A$2$
- B$4$
- C$-4$
- D$-2$
Explore More
Similar Questions
Solve the following equation using the quadratic formula,if the equation has a solution in $R$: $\sqrt{3}x^{2} - 2x + \sqrt{3} = 0$
Easy
View SolutionThe product of Virat Kohli's age $8$ years ago and $6$ years later is $680$. Find his present age.
Medium
View SolutionFind the roots of $6x^{2} - \sqrt{2}x - 2 = 0$ by the factorisation of the corresponding quadratic polynomial.
Medium
View SolutionIf the following quadratic equation has two equal and real roots,then find the value of $k$: $k x^{2} - 2 \sqrt{5} x + 4 = 0$.
Medium
View SolutionSolve the following equation using the method of factorization: $6(2x+1)^2 - (2x+1) - 5 = 0$
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo