What is a Term? A number, a variable, or a product of numbers and variables. Terms make up expressions (numbers, variables, and operations; not equal sign).

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Presentation transcript:

What is a Term? A number, a variable, or a product of numbers and variables. Terms make up expressions (numbers, variables, and operations; not equal sign). There are like and unlike terms.

4x 8x2 unlike Different types of variables are unlike terms. To be like terms, the variable part is what has to be the same, not the numbers. unlike

2xy - x2y 1 unlike Different types of variables are unlike terms. The variable part is what has to be the same, not the numbers. unlike

3xy -9xy LIKE These are like terms even though they contain both an x and a y. 3xy -9xy LIKE

These are also like terms. xy 1 1 yx LIKE We write variables in alphabetical order.

xy yx LIKE 5 -3 Even if we put numbers in front (coefficients) of each variable, they are still like terms. xy yx LIKE 5 -3

Suppose we have: It could also be: This is the commutative property.

Or: Commutative property again

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