Completing The Square Calculator

Completing the Square Calculator is a free online tool that displays the variable value for the quadratic equation using completing the square method. BYJU’S online completing the square calculator tool makes the calculation faster, and it displays the variable value in a fraction of seconds.

How to Use the Completing the Square Calculator?

The procedure to use completing the square calculator is as follows:
Step 1: Enter the expression in the input field
Step 2: Now click the button “Solve by Completing the Square” to get the output
Step 3: Finally, the variable value for the given expression will be displayed in the new window

What is Meant by Completing the Square?

In Maths, completing the square method is used to solve the quadratic equation. In this method, the form of the given equation is changed such that the left side of the equation should be a perfect square binomial. To use this method, the equation must be of the form ax2+ bx+ c=0. This method is used as an alternative to the quadratic formula. Completing the square method can solve the quadratic equation that the quadratic formula cannot.


Leave a Comment

Your Mobile number and Email id will not be published.



  1. I like the initiative …thanks a lot

  2. Using the identity (a + b)^2 = a^2 + 2ab + b^2, we can expand the square of 11x + 9y.
    Square of 11x + 9y = (11x + 9y)^2
    = (11x)^2 + 2(11x)(9y) + (9y)^2
    = 121x^2 + 198xy + 81y^2