Factoring in AlgebraLesson 2 - Factoring by GroupingFactoring in Algebra can be accomplished in many different ways. When it comes to polynomials, each situation is different based on the make-up of the polynomial. In our last lesson, we learned how to factor by using the greatest common factor. However, some polynomials have no greatest common factor other than 1. Therefore, we would need to choose another method for factoring. In this case, we would look to see if the polynomial has a couple of terms with a common factor. If so, we can group them together and factor separately. Take a look at the following example: Example 13x2 - 3 + x2y - y There are 4 terms in the polynomial. However, there are no common factors within the 4 terms. Do you see two terms that have a common factor that could be grouped together?
I know that factoring can be confusing, but think of factoring as rewriting the problem using the distributive property. You want to continue factoring a polynomial until no common factors exist. Let's look at another example. Example 2
Ok... do you have the hang of it now? I hope so. Your turn to try one! Practice Problem
Answer Key
Great Job! Now you are ready for our last factoring lesson, factoring trinomials. Polynomials UnitReturn from factoring in algebra to Home. |
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