Question

(x+1) is factor of the polynomial​

Answer 1

Answer:

Factor theorem states that if f(x) has a factor x-a, then, f(a)=0. Here,x+1=x-(-1), so we will check f(-1). So, x+1 is a factor of f(x). As f(-1)≠0, x+1 is not a factor of f(x).