12) Classify the polynomial and state the degree.
2x² + x² - 4
A)
monomial; 3
B)
binomial; 2
C)
trinomial; 3
D)
trinomial; 2

Step-by-step explanation:

This expression has three terms and is thus a trinomial.

The degree is 2; this is the highest power of x.

D

Step-by-step explanation:

To classify the polynomial, see how many terms it has. If there's one, it's called a monomial, if there's two, it's a binomial, and if it has three, then it's a trinomial. In this problem, we have three terms, so it will be a trinomial.

To find the degree, you are simply just looking for the highest exponent in the problem. In this trinomial, you have exponents of 2, 2, and 1. 2 would be the highest number in the list, so your degree is 2.

Hope this helps!