Divide: 6x45y÷3x210y2\dfrac{6x^4}{5y} \div \dfrac{3x^2}{10y^2}5y6x4÷10y23x2 (assume no zero denominators).
4x2y4x^2 y4x2y
4x2/y4x^2/y4x2/y
6x2y15\dfrac{6x^2 y}{15}156x2y
2x2y2x^2 y2x2y