Question

Use the factor theorem to determine whether g(x) is factor of f(x) in each of the following cases 1:- f(x)=x3+3x2+3x+1,g(x)=x+1

Answer 1

x+1=0
x= -1
putting value of x
-1³+3×-1²+3×-1+1
-1+3-3+1
=0
Hence verified