# How do you use synthetic division to divide (x^5-13x^4-120x+80)/(x+3)?

D= ${x}^{5} - 13 {x}^{4} - 120 x + 80$
d= $x + 3$
$x + 3 = 0 \Rightarrow x = - 3$
${x}^{4} - 16 {x}^{3} + 48 {x}^{2} - 144 x + 312 - \frac{856}{x + 3}$