7-1 Polynomial Add/Sub

Find each sum or difference for the following expression: (2x + 3y) + (4x + 9y).

• 6x + 12y

• 6x + 9y

• 2x + 3y

• 6x + 3y

Find each sum or difference for the following expression: (6s + 5t) + (4t + 8s).

• 14s + 9t

• 10s + 5t

• 8s + 9t

• 12s + 9t

Find each sum or difference for the following expression: (5a + 9b) - (2a + 4b).

• 3a + 5b

• 7a + 13b

• 3a - 5b

• 7a - 13b

Find each sum or difference for the following expression: (11m – 7n) – (2m + 6n).

• 9m - 13n

• 9m + 13n

• 13m - 3n

• 13m + 3n

• Not a polynomial

• degree 1, monomial

• degree 2, binomial

• degree 3, trinomial

Find the degree and determine whether it is a monomial, binomial, or trinomial.

4by + 2b - by

• Not a polynomial

• degree 1, monomial

• degree 2, binomial

• degree 2, trinomial

• Not a polynomial

• degree 4, monomial

• degree 4, binomial

• degree 2, trinomial