Factorisation method to solve quadratic 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?

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

Graphical Method to solve simultaneous equations

Solved : x^(2)+x-(a+2)(a+1)=0 by (i) factorisation (ii) method of completing the square

Solve the following equation by using the general expressions for roots of as quadratic equation: x^2-5x+6=0

Solve the following equation by using the general expressions for roots of as quadratic equation: x^2-14x+58=0

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

Solve the quadratic equation. 8x ^2−22x−21=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+1=0