Question

Answer 1

\(\left(x-\dfrac{1}{3}\right)^3=\dfrac{-8}{27}\)
\(\left(x-\dfrac{1}{3}\right)^3=\left(\dfrac{-2}{3}\right)^3\)
\(x-\dfrac{1}{3}=\dfrac{-2}{3}\)
\(x=\dfrac{-2}{3}+\dfrac{1}{3}\)
\(x=\dfrac{-1}{3}\)
 

Answer 2

`(x-1/3)^2 = -8/27`

`=> (x-1/3)^3 = (-2/3)^3`

`=> x-1/3 = -2/3`

`=> x = -1/3