the numerator (2) represents the exponent inside the radical.
the denominator (7) represents the root.
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![\sqrt[7]{(7x^(3)y^(2))^(2) }](https://img.qammunity.org/2019/formulas/mathematics/high-school/72bgd9r3em6lynvm8phymecnahfunifmtb.png)
![\sqrt[7]{49x^(6)y^(4) }](https://img.qammunity.org/2019/formulas/mathematics/high-school/uxy3nr7vbaoc5sz40izfef2y1bn93yhwg9.png)