Intermediate Algebra: Connecting Concepts through Application

four terms; all variable terms with coefficients $1$, $-3$, $4$, and $-4$.
Variable terms include a variable, and constant terms cannot change. $m^3n^2-3m^2n+4mn^3-4n$ four terms; all variable terms with coefficients $1$, $-3$, $4$, and $-4$.