[header] How to solve a quadratic equation using the goal seek feature on microsoft excel [title] Launch the microsoft excel 2010 program. [substeps] This procedure can be applied to microsoft excel 2013 or earlier versions of microsoft excel as long as it has the goal seek feature. [title] Locate the equation you plan on solving and re-arrange the equation to equal zero. 
[substeps] For this example, we will use a quadratic equation of the form ax^2 + bx + c=0. To do this, we will need to rearrange the equation so that the right hand side is equal to zero.