Quadratic Equations Quiz 5

Find the zeros of the quadratic polynomial $x^2-5x-14.$

If one root of the quadratic equation $x^2-4x+1=0$ is $2+\sqrt{3}$, then the other root is ……

If $\alpha,\beta$ are the roots of $x^2-10x+9=0,$ then $|\alpha-\beta|$ =

The number of diagonals in a polygon having ‘n’ sides is ……

If 5 is a root of $x^2-(K-1)x+10=0$, then the value of K is

Sum of the roots of $x^ 2-16=0$ is

The sum of squares of the roots of $x^2+8x+15=0$ is ……

The value of $\sqrt{2+\sqrt{2+\sqrt{2\,+......}}}$ is……

The roots of $(b-c)$ $x^2+(c-a)$ $x+(a-b)$ = 0 are equal and kb = a + c, then the value of k is……

The roots of $x-\frac{3}{x}$ = 2 are