Consider the rational expression 8/(3x) - (x⁴)/(x² - 3x + 8). Place the steps required to simplify the given sum into one simplified rational expression in the correct order.
1) 8x - 8/(3x)
2) 3x³/(x(x - 1))
3) 8/(3x) - 1/(x - 1)
4) 11x - 8/(3x² - 3x + 8)