Chapter 5 - Polynomials and Polynomial Functions - 5-1 Polynomial Functions - Practice and Problem-Solving Exercises - Page 286: 41

Standard form: $-4a^4+a^3=a^2$ Degree = 4 Number of terms = 3 Thus, the polynomial is a quartic trinomial

RECALL: The standard form of a polynomial has the terms arranged in descending degree order. This means that the standard form of the given polynomial is $-4a^4+a^3+a^2$ This polynomial has degree 4 and has three terms. Thus, the polynomial is quartic trinomial.