Question

hallar el valor de x ayuda !! $\sqrt[3]{x/125} = 2/5$

Answer 1

$\sqrt[3]{ \frac{x}{125} }= \frac{2}{5} \\ \\ ( \sqrt[3]{ \frac{x}{125} })^3= ( \frac{2}{5})^3 \\ \\ \frac{x}{125}= \frac{8}{125} \\ \\ 125(\frac{x}{125})= 125(\frac{8}{125}) \\ \\ x=8 \\ \\ Comprobemos: \\ \\ = \sqrt[3]{ \frac{8}{125} } = \frac{2}{5} \\ \\ \frac{2}{5}= \frac{2}{5} \quad\checkmark \quad\checkmark$