## Algebra 1: Common Core (15th Edition)

Sample answer: $x^{4} +x+1$
A trinomial has three terms. Degree 4 means that the sum of exponents in the leading term is 4 (e.g.$x^{4}),$ GCF =1 means that there are no common factors (except 1). Sample trinomials: $x^{4} +x+1,$ $2x^{2}y^{2}+xy+1,$ $x^{4}+x^{3}+1,$ $etc...$