Which expressions are polynomial?

y

4x^3+y

2+s

Which description is correct for the polynomial 4x^2+3x+5

cubic trinomial

quadratic trinomial

Polynomial means more than 1 term when all like terms are combined

terms are seperated by plus or minus symbols

you can't combine placeholders and numbers

y is 1 term, not poly

4x^3+y is 2 term, poly

2+s is 2 term, poly

answer is 4x^3+y and 2+s

cubic means highest power of the placeholder is 3

quadratic means highest power of placeholder is 2

trinomial means 3 terms

yep, 3 terms

4x^2+3x+5

highest power is 2

quadratic trinomial