Question

\(\left(x+\dfrac{1}{2}\right)^3:3=\dfrac{-1}{81}\)

Answer 1

`(x+1/2)^3 = -1/81 xx 3`

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

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

`x = -1/3 - 1/2 = -5/6`

Answer 2

=>(x+1/2)^3=-1/81*3=-1/27

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

=>x=-5/6

Answer 3

\(\left(x+\dfrac{1}{3}\right)^3:3=-\dfrac{1}{81}\\ \Leftrightarrow\left(x+\dfrac{1}{3}\right)^3=-\dfrac{1}{27}\\ \Leftrightarrow x+\dfrac{1}{2}=-\dfrac{1}{3}\\ \Leftrightarrow x=-\dfrac{5}{6}\)