Respostas

2014-03-25T11:55:07-03:00
 \sqrt[3]{5x-2} = -3  elevar tudo ao cubo

 (\sqrt[3]{5x-2})^3 = (-3)^3

5x-2 = -27

5x= -27 +2

5x= -25

x=  \frac{-25}{5}  = [- 5 ]

Resp : x = -5