Simplify xxxx333\sqrt[3]{x\sqrt[3]{x\sqrt[3]{x\sqrt{x}}}}3x3x3xx .
x\sqrt{x}x
x23\sqrt[3]{x^{2}}3x2
x227\sqrt[27]{x^{2}}27x2
x54\sqrt[54]{x}54x
x8081\sqrt[81]{x^{80}}81x80