[" thow equation "x+3x+2=0],[x^(2)+3x+9=0]

Solve the following equation , 3x^2 +6x -9 =0

If f(x)=4x^(2)+3x-7 and alpha is a common root of the equation x^(2)-3x+2=0 and x^(2)+2x-3=0 then the value of f(alpha) is

Solve the equation: x^2+3x+9=0

Solve the following equation :- x^2 + 3x + 9 = 0

Solve x ^(2) +3x+9=0

Solve the following equations: x^2 +3 x +9 = 0

The roots of the equation 2x^(2) + 3x + c = 0 (where x lt 0 ) could be "______" .

Solve the equation x^2+3x+9=0 .

Solve the equation (x^(2)-3x)^(2)+3x^(2)-9x-28=0 for real roots.