Question

prove that x+1 is a factor of x^3+x^2+x+1​

Answer 1

Answer:

x+1=0

x=-1

f(x)=x^3+x^2+x+1

f(-1)=(-1)^3+(-1)^2+(-1)+1

    = -1+1-1+1

  =0

Answer 2

Step-by-step explanation:

x+1=0

x=0+1

=-1

f(x)=x*3+x*2+x+1

f(-1)=(-1)*3+(-1)*2+(-1)+1

=-1+1-1+1

=0