Question

If x + 1/x =- 1, where a x≠0, find find the value of x³​

Answer 1

Answer:

x+1/x = -1

x^2+1=-x

x^2+x+1=0

multiply by x

x^3+x^2+x=0

x^3-1=0. (as x^2+x=-1)

x^3=1