Question

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

Answer 1

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

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

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

=>\(x=\dfrac{1}{3}+\dfrac{2}{3}=\dfrac{3}{3}=1\)

Answer 2

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

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

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

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

`=> x = 3/3`

`=> x = 1`

Vậy `x = 1`