Which expression is equivalent to RootIndex 4 StartRoot StartFraction 16 x Superscript 11 Baseline y Superscript 8 Baseline Over
81 x Superscript 7 Baseline y Superscript 6 Baseline EndFraction EndRoot? Assume x Greater-than 0 and y not-equals 0. StartFraction 4 x (RootIndex 4 StartRoot y squared EndRoot) Over 9 EndFraction StartFraction 2 x (RootIndex 4 StartRoot y squared EndRoot) Over 3 EndFraction StartFraction 4 x squared y Over 9 EndFraction StartFraction 2 x squared y Over 3 EndFraction
