" If the roots of the quadratic equation "x^(2)-4x-10z,0=0" are real,then the least value of a is "

If the roots of the quadratic equation x^(2)-4x-log_(3)a=0 are real,then the least value of a is

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

The real roots of the quadratic equation x^(2)-x-1=0 are ___.

Roots of quadratic equation x^(2)-4x+3=0 are

If the roots of the quadratic equations x^(2) +4x +c=0 are equal then the value of c is:

If the roots of the quadratic equation x^(2)-2kx+2k^(2)-4=0 are real,then the range of the values of k is

The roots of the quadratic equation 3x^2+7x+4=0 are