Symbols of inclusion group terms together. You’re most familiar with parentheses as a symbol of inclusion, but there are others. Symbols of inclusion are symbols like parentheses, brackets, braces, absolute value bars, and division.
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The distributive property is a method you can use to simplify expressions, especially when there are variables. To distribute, multiply the term outside of the parentheses by each term inside the parentheses. For instance the distributive property tells us a(b+c)=ab+ac and that a(b-c)=ab-ac.
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Associative comes from the word “associate”. Try to remember that “associate”, in terms of math, refers to grouping with parentheses. We’ll look at both the associative property of addition, and the associative property of multiplication.
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