續多項數[help]~~~~~~急急!!!!thxx

稍後補答````````````````````

2012-12-09 23:41:33 補充：
by remainder theorem,

1. the remainder = f(-1)=(-1)^3-4(-1)^2+8(-1)+6 = -7
2. the remainder = f(-0.5)=(-0.5)^2-2(-0.5)-1 = 0.25

(x^3-4x^2+8x+6)/(x+1)!?