Question

simplificar las siguientes operaciones
[(2m+n)-(3m-2n)]-(4m2-3mn)

Answer 1

[(2m+n)-(3m-2n)]-(4m2-3mn)=
=[2m+n-3m+2n]-4m²+3mn
=-m+3n-4m²+3mn
=4m²+3mn-m+3n