what is the remainder when (x3 − 6x2 − 42x + 79) is divided by (x + 5)?

a) 7

b) 11

c) 13

d) 14

By synthetic division,

-5  |  1    -6    -42    79
.    |        -5     55   -65
- - - - - - - - - - - - - - - - - 
.    |  1   -11    13    14




When , you're left with a remainder of 14.