Step by Step Solver Calculator to Complete the Square
In this worksheet, we use the identity $$(x+b/2)^2 = x^2+bx+(b/2)^2 \, \, \, \, (1)$$ which is equivalent to $$x^2+bx = (x+b/2)^2 - (b/2)^2\, \, \, \, (2) $$ to complete the square. Solve each step below then click on "Show me" to check your answer. There is a graph at the bottom of the page that helps you further understand the solution to the question shown below.
Step by step solution
Graphical Meaning of Solution
Below is shown the graph of the given function (green) which is a parabola with the vertex (red point). (Change scales if necessary)