Sum of Monomials

Find the sum of 16y² and -5y².

• -11y²

• 21y²

• 11y²

• 16y² - 5y²

Simplify the expression: 2x + 1 + 7x 

• 10x

• 10

• 9x + 1

• 9 + 1x

-8mn + 9mn

• mn

• -1mn

• m²n²

• -1m²n²

When adding or subtracting monomials, what happens to the exponents?

• You add or subtract them from each other.

• The exponents stay the same.

Add.

The sum/difference of three monomials ​ ​ (a)  

• Trinomial

• Polynomial

• Binomial

• Monomial

The sum/difference of two or more monomials ​ ​ ​ (a)  

• Polynomial

• Binomial

• Monomial

• Trinomial

The sum/difference of two monomials​ ​ ​ ​ (a)  

• Trinomial

• Polynomial

• Binomial

• Monomial

The sum of the exponents of the variables

• Constant

• Degree of a Monomial

• Like Terms

• Coefficient

Complete the statement with always, sometimes, or never.

The terms of a polynomial are_____________ monomials. 

• Always; A polynomial is a monomial or sum of monomials, and each monomial is a term of the polynomial.

• Always; A polynomial is a binomial or sum of monomials, and a monomial can be a term of the polynomial.

• Sometimes; A polynomial is a sum of monomials, binomials, and trinomials, and a monomial can be a term of the polynomial.

• Never; A polynomial is a sum of binomials and trinomials, not monomials.