Question 44007
{{{sqrt(x^3)=8}}}
{{{x^3=8^2}}}
{{{x^3=64}}}
{{{x=64^(1/3)}}}
{{{x=2}}}

I hope this helps.

P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would send me your feedback on my help to adam.chapman@student.manchester.ac.uk.