36,983 views
4 votes
4 votes
Solve the equation.
\sqrt[3]{2x} - 10 = - 3

User Qble
by
2.6k points

1 Answer

26 votes
26 votes

Given: The given equation below


\sqrt[3]{2x}-10=-3

To Determine: The value of x

First, collect like terms


\begin{gathered} \sqrt[3]{2x}-10=-3 \\ \sqrt[3]{2x}=-3+10 \\ \sqrt[3]{2x}=7 \end{gathered}

Take cube of both sides


\begin{gathered} (\sqrt[3]{2x})^3=7^3 \\ 2x=343 \\ \text{Divide both sides ny 2} \\ (2x)/(2)=(343)/(2) \\ x=171(1)/(2) \end{gathered}

Hence, x = 171 1/2, or 171.5

User Ryan Payne
by
2.7k points