0.2 is a root of the equation $x^2-0.4=0?x^2-0.4=0?$

A quadratic equation with integral coefficients has integral roots.

If b = 0, c < 0, then the roots of $x^2+bx+c=0x^2+bx+c=0$ are numerically equal and opposite in sign.

The discriminate of the quadratric equation $x^2-4x+1=0x^2-4x+1=0$ is

If the discriminant of the equation $6x^2-bx+2=06x^2-bx+2=0$ is 1, then the value of b is

Value(s) of k for which the quadratic equation $2x^2-kx+k=02x^2-kx+k=0$ has equal roots is/are

The quadratic equation $2x^2-\sqrt{5}x+1=02x^2-\backslash sqrt5x+1=0$ has

Which of the following is a quadratic equation?

Which of the following is not a quadratic equation?

Which of the following equations has 2 as a root?

Which of the following equation has the sum of its roots as 3?

If 2 is the one root of the equation $2x^2+ax+6=02x^2+ax+6=0$ then a = ?

If the product of the roots of equation $k{x}^2+2x+3k=0kx^2+2x+3k=0$ is equal to their sum then the value of k is:

What is the nature of the roots of the equation $2x^2-6x+7=0?2x^2-6x+7=0?$

Which of the following equations has two distinct real roots?