Question

if x²+1/x=27, find x+1/x, x-1/x​

Answer 1

Step-by-step explanation:

if x^2+1/x^2=29

adding two on both sides

resulting to (x+1/x)^2= 31

x+1/x= sqrt(31)

x-1/x= sqrt(27)

3sqrt(3)