Question

Use the factor theorem to determine whether g(x) is factor of f(x) in each of the following cases.
f(x)=5x³+x²-5x-1,g(x)=x+1
please friends I want the answer with steps please friends​

Answer 1

g(x)=x+1

x=-1

put the value of x in f(x)

5(-1)³+(-1)²-5(-1)-1

-5+1+5-1

0

therefore g(x) is a factor of f(x)