Question

(2x - 1)³ = \(\dfrac{8}{27}\)

Answer 1

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

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

\(\Rightarrow2x-1=\dfrac{2}{3}\)

\(\Rightarrow2x=\dfrac{2}{3}+1\)

\(\Rightarrow2x=\dfrac{5}{3}\)

\(\Rightarrow x=\dfrac{5}{3}:2=\dfrac{5}{6}\)