sorry i took so long to answer hope this helps you fam:)
x^3 +x^2 +x +1 = 0
=> x^2( x + 1) + 1(x + 1) = 0
=> (x^2 + 1)(x + 1) = 0
x + 1 = 0
=> x = -1
x^2 + 1 = 0
=> x^2 = -1
answer is...
x=1,x=-1
x^3-x^2-x+1=0
The answer to this problem is x=1, and x=-1.
4.9m questions
6.3m answers