Use Synthetic Division to find the Remainder.
(2x^3−5x^2−x+3) ÷ (x + 3)
(2x^2 − 3x + 1) ÷ (x + 5)
(x^2 + 3x + 5) ÷ (x + 1)
-3 [ 2 - 5 - 1 3 ]
-6 33 -96
_______________
2 -11 32 -93 ⇒ remainder
-5 [ 2 - 3 1 ]
-10 65
____________
2 -13 66 ⇒ remainder
-1 [ 1 3 5 ]
-1 -2
__________
1 2 3 ⇒ remainder
+595 
