Like terms
Analyze like terms in Grade 9 math — Terms with different variables or the same variables raised to different powers are unlike terms. Part of Algebraic Expressions and Equations for Grade 9.
Key Concepts
Property Two or more terms that have the same variable or variables raised to the same power are like terms . Terms with different variables or the same variables raised to different powers are unlike terms .
Examples $7x^2$ and $3x^2$ are like terms because they share the same variable family, $x^2$. $7y^2$ and $3x^2$ are unlike terms because their variables, $y$ and $x$, are different. $7y^4$ and $3y^2$ are unlike terms because their exponents are different, making them distant cousins, not twins.
Explanation Think of variables and their exponents as a family name. You can only combine terms from the exact same family! The numbers in front, called coefficients, just tell you how many members of that family you have. For terms to be alike, their variable parts must be identical twins.
Common Questions
What is 'Like terms' in Grade 9 math?
Terms with different variables or the same variables raised to different powers are unlike terms. Terms with different variables or the same variables raised to different powers are unlike terms.
How do you solve problems involving 'Like terms'?
Terms with different variables or the same variables raised to different powers are unlike terms. Explanation Think of variables and their exponents as a family name.
Why is 'Like terms' an important Grade 9 math skill?
They have different variables, so they must stay separate in the final answer.. Think of them as apples and oranges—you can't combine them into a single fruit!.