Question 201746
Recall that *[Tex \LARGE \sqrt{x}=x^{\frac{1}{2}}] and {{{(x^(y))^z=x^(y*z)}}}



So *[Tex \LARGE \left(\sqrt{3mn}\right)^{7}=\left((3mn)^{\frac{1}{2}}\right)^{7}=(3mn)^{\frac{7}{2}}]



So *[Tex \LARGE \left(\sqrt{3mn}\right)^{7}=(3mn)^{\frac{7}{2}}] where {{{mn>=0}}}