Question

(x - \(\dfrac{2}{3}\))³ = \(\dfrac{-1}{27}\)

Answer 1

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

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

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

`x=1/3`

Answer 2

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

vậy...........