What is the quotient when (x(3)-8x(6)) is divided by (x(2)-2x+1) using long division?
a. x4 + 2x3 - 4x2 + 6x - 8
b. x2 - 2x + 1
c. x2 + 2x - 1
d. x4 - 2x3 + 4x2 - 6x + 8