Elementary Algebra Review Part 11
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Lesson Summary:
In this lesson on elementary algebra, we learn how to simplify polynomials by combining like terms. By adding coefficients of the same variables, we can simplify and write the expression in a simpler form. Examples range from simple expressions, like 4x + 10x - 2x, to more complex ones involving decimals and multiple variables. Remembering to line up decimals and dealing with positive and negative numbers are also emphasized in this lesson.
Lesson Description:
Simplifying polynomials by combining like terms
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you simplify algebraic expressions by combining like terms?
- How do you simplify 4x + 10x - 2x by combining like terms?
- How do you simplify 3m^3 - 8m^3 + m^3 by combining like terms?
- What are like terms?
- How do you know whether you can combine terms or not?
- How do you simplify 5x - 7y - 18x + y by combining like terms?
- What is the coefficient of a variable term if there is no number in front of it?
- How do you simplify a variable expression with decimals such as 13.4 + 5.3x - 7x -27.1 by combining like terms?
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Staff Review
This lesson does a great job of reviewing how to combine like terms to simplify variable expressions. Each step in every problem in this video is explained. Decimals are used in the last example. -
