Question

examine whether (x+1) is a factor of 3x^2+x+1?

Answer 1

Welcome to Openstudy :)
Start off by setting it as a synthetic division problem

Answer 2

put x=-1,if the result is zero then x+1 is a factor.

Answer 3

find \(f(-1)\)
if you get 0 the answer is yes
if you get something else the answer is no

Answer 4

its not..