Quadratic Equations Quiz 13

The roots of the quadratic equation $x^2-5x+6=0$ are 

If the roots of a quadratic equation are equal, then

The roots of the quadratic equation $abx^2-(a+b)x+1=0$ are

If $\alpha,\beta$ be the roots of the quadratic equation $x^2-2x+1=0$, then the quadratic equation whose roots are $\alpha+\beta$ and $\alpha \beta$ is ……

Which of the following is not a quadratic equation ?

Is $-\sqrt{5}x^2+6x+3=0$ a quadratic equation ?

Which of the following equation has $\frac{1}{5}$ as a root ?

If $x=1$ is a common root of the equations $ax^2+ax+3=0$ and $x^2+x+b=0$, then the value of ab is :

Which of the following equations has the sum of roots as 3 ?

Which constant should be added and substracted to solve the quadratic equation $4x^2-\sqrt{3}x-5=0$ by the method of completing the square?