Completing the square method to solve Quadratic Equations

Graphical Method to solve simultaneous equations

Which constant must be added and subtracted to solve the quadratic equation 9x^2+ 3/4x - sqrt2 = 0 by the method of completing the square?

By using the method of completing the square, show that the equation 4x^2+3x+5=0 has no real roots.

Using factorisation method, solve the following quadratic equations. (2x)/(x-4)+(2x-5)/(x-3)=25/3; x!=4,3

A quadratic equation is chosen from the set of all quadratic equations which are unchanged by squaring the roots. The chance that the chosen equation has equal root, is

Solve the equation 2x^2+3ix+2=0 using the general expression for a quadratic equation.

Solve the following equations by using the general expression for a quadratic equation: x^2 +4ix-4=0

Solve the following equations by using the general expression for a quadratic equation: x^2-(7-i)x+(18-i)=0

Solve the following equations by using the general expression for a quadratic equation: x^2-7ix-12=0

Solve the quadratic equation 2x^2-4x+3=0 by using the general expressions for the roots of a quadratic equation.