[tex]\text{A polynomial must have multiple terms in its expression}\\\\\text{That means we could eliminate the last answer choice automatically}\\\\\text{There are different types of polynomials, in which you could see that}\\\text{there is a trinomial in one of the answer choices}\\\\\text{Your best answer choice would be the 2nd one:}\,\,6x^2+x+5\\\\\text{This is because there are different terms and there are multiple of them}[/tex]
