1. 若f(x)=(2x3+x+3)(x2+2x-1)+(x2+1)
f(x)除以2x3+x+3的商為______ 餘式為______
2.若多項式f(X)除以X2+3X+1的餘式為2X+5
X2f(X)除以X2+3X+1的餘式為______