[" The roots of quadratic equation "],[x^(2)-7x+12=0" are "]

If the roots of the quadratic equation x^(2) - 7 x+ 12 = 0 are intercepts of a line , then the equation of the line can be "_______" .

The roots of x in the quadratic equation x^(2)-x-12=0 are

Find the roots of the quadratic equation x^(2)+7x+12=0

The roots of the quadratic equation x^2 + 8x + 12 = 0 are

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

The roots of ' x ' in the quadratic equation x^(2)-x-12=0 are

The roots of the quadratic equation x^(2)+a=0 are ______ .