For what values of `k`,the roots of the equation `x^(2)+4x+k=0` are real?

For what values of k are the roots of the equation kx^(2)+4x+k=0 real and unequal ?

For what value of k, -2 is a root of the equation 3x^(2)+4x+2k=0 ?

If -2 is a root of the equation 3x^(2)+7x+p=0, find the value of k so that the roots of the equation x^(2)+k(4x+k-1)+p=0 are equal.

For what values of k, the equation 2x^(2) +kx + 8 = 0 has real and equal roots ?

If the roots of the quadratic equation x^(2) +2x+k =0 are real, then

For what values of k are the roots of the quadratic equation 3x^(2)+2kx+27=0 real and equal?

For what values of k does the quadratic equation 4x^(2) - 12x - k =0 have no real roots ?

For what values of k, the equation x^2+2(k-4) x + 2k=0 has equal roots?

For what real values of k both the roots of equation x^2+2(k-3)x+9=-0 lie between -6 and 1.

For what real values of k both the roots of equation x^2+2(k-3)x+9=-0 lie between -6 and 1.