X 2 0 x 4 0. Completing the square Completing the square is a way to solve a quadratic equation if the equation will not factorise. This method will apply to solving any quadratic equation.
If a is not equal to 1 then divide the complete equation by a such that co-efficient of x2 is 1.
Completing the Square is a method used to solve a quadratic equation by changing the form of the equation so that the left side is a perfect square trinomial. Write the equation in the form such that c is on the right side. As long as the coefficient or number in front of the x 2 is 1 you can quickly and easily use the completing the square formula to solve for a. X 2 08x 04 Step 3 Complete the square on the left side of the equation and balance this by adding the same number to the right side.