Question

x^3-3x+1=0 then find x+1/x​

Answer 1

Answer:

Step-by-step explanation:

x^3-3x+1=0

x^3-3x= -1

3 root x^3-3x= 3 root -1

^3 cancel third root

x-3x= -1

x= -1 + 3x

Find x+1/x

(-1+3x)+1/-1+3x

(-1+3x)/-1+3x = 1

Therefore the answer is 1