## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Thus, $2x^2y$ and $5x^2y$ are like terms.
RECALL: In a polynomial, like terms are terms that have exactly the same variables and variables' exponents. Examples: $2xy, 5xy$; $2x^2, 3x^2$; $3x^2yz, -9x^2yz$ Thus, $2x^2y$ and $5x^2y$ are like terms.