Question

Which of the following is a trinomial?

c2 + c + 6
c2 − 16
−8c
c3 + 4c2 − 12c + 7

Answer 1

A trinomial consists of 3 variables. Hence the answer will be A. C2 + C + 6

Answer 2

A trinomial is an expression that consists of three terms. The only answer here that consists of three terms would be c2 + c + 6.
a has three terms
b has two terms
c has one term
d has four terms

As we have see, our answer is a. c2 + c + 6