Elementary Algebra Review Part 10
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Lesson Summary:
In this lesson, students learn how to use the distributive property to simplify expressions. The teacher works through several problems, showing step by step how to distribute the term outside the parentheses to each term inside, and then simplify the expression using combining like terms. Students also learn how to rewrite an expression with a minus sign outside the parentheses as the opposite of everything inside the parentheses, and how to deal with negative and positive numbers.
Lesson Description:
Using the distributive property to simplify expressions
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How can you use the distributive property to write variable expressions without parentheses and simplify the result?
- How can you use the distributive property to re-write 4(x + y) without parentheses?
- How can you use the distributive property to re-write 5(3x - 7) without parentheses?
- How can you use the distributive property to re-write -3(x + 10) without parentheses?
- How can you use the distributive property to re-write -3(2x - 4) without parentheses?
- How can you use the distributive property to re-write -(x + 8) without parentheses?
- How can you use the distributive property to re-write -(-2x - 1) without parentheses?
- How can you use the distributive property to re-write 2/7(35x - 14) without parentheses?
- How can you use the distributive property to re-write 2(3x - 1) - (-20) without parentheses?
- How can you simplify an expression when you cannot simplify inside of parentheses?
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Staff Review
This lesson shows how to use the distributive property in a very useful way - rewriting variable expressions without parentheses. This skill becomes very useful in future problems in Algebra.
