How to Factorise in Math

By Contributor; Updated April 24, 2017
Math Equations

During math class in grade school, we were taught how to factor equations. It is possible you may have forgotten or need a refresher. You may need to factorise if you are going to college or study for a preparation exam. Follow these steps on how to factorise.

To factor numbers, practice is a great way to refresh these math skills. Find a practice problem. Here I will use the example 4x² + 6x.

Click to Enlarge

Break up the equation. You will break up 4x² and 6x into factors, meaning something that goes into 4x² and 6x. 2x goes into both.

You will pull out the common factor. Write 2x outside of brackets.

Add remaining factors inside brackets that multiply by 2x to give you each original term. For instance, 2x multiplied by 2x gives you 4x² and 2x multiplied by 3 gives you 6x. you would then write: 2x(2x+3).

Check your answer. * Pick a number for "x" for both equations and you should get same results.

Tip

Double check your work Practice Read websites or math books for plenty of examples

About the Author

This article was created by a professional writer and edited by experienced copy editors, both qualified members of the Demand Media Studios community. All articles go through an editorial process that includes subject matter guidelines, plagiarism review, fact-checking, and other steps in an effort to provide reliable information.