Quadratic Equat...

Which of the statements given below is correct, if discriminant for equation  $$5x^2 - 4x +2 =0$$ is D ?

Which of the following equations are not quadratic?

If $$b\in F'$$ then the roots of the equation $$\left( 2+b \right) { x }^{ 2 }+(3+b)x+(4+b)=0\quad $$ is

The number of integral value of k such that the given quadratic equation has imaginary roots are?

If $$a, b,c$$ are distinct and the roots of $$(b-c)x^{2} +(c-a)x +(a-b)=0$$ are equal, then $$a,b,c$$ are in:

Which of the following equations, is not a quadratic equation?

The discriminant of quadratic equation $$3x^{2} - 4x - 1 = 0$$ is _______.

Find the roots of the equation by the method of Completion of Squares:
$$x^2 - 6x + 9 = 0$$

What are the zeros of $$P(x) = 5 - x^{2}$$?

If the roots of the quadratic equation $$5x^{2} - 2kx + 20 = 0$$ are real and equal then the value of $$k$$ is ________.