What is the remainder when the polynomial 7x^2+15x - 12 is divided by x+3?
Remember that if we divide by x + a, we are dividing by "-a" in the synthetic division process
So..... in x + 3....."a" = 3....so we are dividing by " - 3"
So we have
-3 [ 7 15 -12
-21 18
______________
7 - 6 6
The remainder is 6
+315 
