Question

solve (u+7)^3/2=-2

where u is a real number

Answer 1

\[ (u+7)^{3/2}=-2 \rightarrow (u+7)=(-2)^{2/3}\]
i.e. \[ (u+7)=\sqrt[3]{(-2)^2} \rightarrow (u+7)=\sqrt[3]{4} \rightarrow u=\sqrt[3]{4}-7\]

Answer 2

If you want to find the value of u, u=-7+3√4....u=0

Answer 3

http://www.mathway.com/answer.aspx?p=calg?p=(u+7)SMB073SMB102SMB01-2?p=1?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=SolveSMB15theSMB15EquationSMB15forSMB15u