The roots of a pure quadratic equation exists only if `"_______"`.

Sum of the roots of a pure quadratic equation is..

Select the pure quadratic equations:

The coefficient of x in a pure quadratic equation is…

The pure quadratic equations in the following is

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 4x^2+x-3=0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: x^2+4x+1=0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 2x^(2) + x - 4 = 0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 5x^(2) - 7x - 6 = 0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: x^(2) + 5 = -6x

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 2x^2 +x-4=0