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!

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12