Question

Math 38 help please

Answer 1

`x=121`

8) I

8.2)

`\begin{gathered} \sqrt[3]{x+4}=5 \\ \left(\sqrt[3]{x+4}\right)^3=5^3 \\ x+4=125 \\ x+4-4=125-4 \\ x=121 \\ Verify: \\ \sqrt[3]{121+4}=5 \\ \sqrt[3]{125}=5 \\ 5=5\:True! \end{gathered}`

hus , the answer is x=121