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## Factoring by Grouping

#### Grade 6 Numbers - 6.NS.B.4

Factoring allows us to make sense of complex algebraic arrangements. Perhaps the most common method of factoring is to remove the greatest common factor between all the terms. When reviewing many different algebraic forms, you will come across terms that do not share a common factor at all. The next most common technique of factoring is called grouping. Grouping allows us to divide a set number of terms into a group of terms. In some cases, you may remove the greatest common factor and then employ this technique right after it. In other cases, you may group first and then remove common factors. In most cases, you can just separate the first half of the terms from the second half of the terms, but do not forget that can rearrange these expressions to make them work best for you. Often when we stuck somewhere along the way, it is best to start over and by rearrange the expression itself. These worksheets can be very helpful for learning to use the grouping technique.

### Printable Worksheets And Lessons

• Step-by-Step Lesson- This lesson takes you through the two step process of: Step 1: Determine if all the four terms have anything in common between them. Does a greatest common factor (GCF) exist? In this case, all four terms only have 1 in common. This does not help us make progress. Step 2) We will start to approach the terms by grouping them together. If we consider the first two terms together and the last two terms together, we can make so progress.
• Guided Lesson - You will find which terms you can work off of and restate the expression in a sinple form.
• Guided Lesson Explanation - This is where we start to split the expression into two parts.
• Basic Practice Worksheet - Factor each polynomial completely.
• Intermediate Level Worksheet - These problems are a bit more complex.  #### Homework Sheets

Each homework sheet helps you better understand the skill with a simple progression.

• Homework 1 - This is straight forward with minimal adjustments being needed to solve.
• Homework 2 - This allows you to work the skill in a skeleton like framework.
• Homework 3 - When you find the product of your solution, it should be what you started with.
• Homework 4 - We ramp up the front end terms here.
• Homework 5 - This gets a bit more complex and you will need to pull out multiple terms.

#### Practice Worksheets

You will get another shot at these types on problems with more work on each successive version.

• Practice 1 - Make sure that you handle the exponents all the way through this one.
• Practice 2 - These may be a bit more complex for you to work with.