Need desperate help with this question!

Question

(x^3-13x-18)/(x-4)

Answer 1

****** x^2 + 4 x + 3
(x-4)| x^3 + 0x^2 -13 x - 18
****** x^3 - 4x^2
*********** +4x^2 -13 x - 18
*********** +4x^2 -16 x
***************** +3 x - 18
***************** +3 x - 12
R = -6

Answer 2

SEE ALL THE DETAILS HERE:

http://calc101.com/webMathematica/long-divide.jsp