Solve the equation by using the general expression for roots of a quadratic equation: ` x^2+x+1/sqrt(2) =0`

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)-x+1=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+x+1=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+2=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+3=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)-8x+1=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+x+2=0

Solve the equation by using the general expression for roots of a quadratic equation: 9x^(2)+4=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+(x)/(sqrt(2))+1=0

Solve the equation by using the general expression for roots of a quadratic equation: x^(2)+2x+2=0

Solve the equation by using the general expression for roots of a quadratic equation: -x^(2)+x-2=0