Question

if x–2/x = 3, find the value of x^3–8/x^3.​

Answer 1

Answer:

x-2/x=3

x-2=3x

-2=3x-x

-2=2x

so, x= -1

now,

x^3 -8/x^3

-1^3 -8 / -1^3

-1-8/-1

-9/-1

so, answer is 9