Which expression is x2/3x^{2/3}x2/3?
x23\sqrt[3]{x^2}3x2
x3\sqrt{x^3}x3
x3⋅xx^3 \cdot \sqrt{x}x3⋅x
x2⋅x3x^2 \cdot \sqrt[3]{x}x2⋅3x