# Algebra Benchmark2

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Published on December 19, 2007

Author: guestca6034

Source: slideshare.net

Combining Alike Terms By: Roberto Albano Stream: Red B-Band

A Common Mistake When combining like terms, some people who are not very experienced with this topic commonly do the same thing. This thing is combining things that seem to be alike, but are not.

When combining like terms, some people who are not very experienced with this topic commonly do the same thing.

This thing is combining things that seem to be alike, but are not.

The Correct Way & Wrong You can combine things that are alike. For example, you can combine -6a+-4a. However you cannot combine them if one of them has an exponent. For example you cannot combine -6(a^2) + -4a because -4a does not have an exponent.

You can combine things that are alike.

For example, you can combine -6a+-4a.

However you cannot combine them if one of them has an exponent.

For example you cannot combine -6(a^2) + -4a

because -4a does not have an exponent.

An Example Here is an example of how to combine like terms, 6a - 5 - 4 - 2a - 7 6a + -2a = 4a -5 + -4 + -4 = -16 So now after combining the terms that are alike your new equation is, 4a - 16

Here is an example of how to combine like terms,

6a - 5 - 4 - 2a - 7

6a + -2a = 4a

-5 + -4 + -4 = -16

So now after combining the terms that are alike your new equation is,

4a - 16

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