Question

 ( 3 - x )³ = \(-\dfrac{27}{64}\)

Answer 1

`(3-x)^3=-27/64`

`(3-x)^3=(-3/4)^3`

`3-x=-3/4`

`x=3+3/4`

`x=15/4`

Vậy `x=15/4`

Answer 2

\(\left(3-x\right)^3=-\dfrac{27}{64}\\ \left(3-x\right)^3=\left(-\dfrac{3}{4}\right)^3\\3-x=-\dfrac{3}{4}\\ x=3+\dfrac{3}{4}\\ x=\dfrac{15}{4}\)

Vậy: ...