<<< native [ EFraction NormalFrac (ERoot (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ]) (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ])) (ERoot (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ]) (EGrouped [ ENumber "3" , EIdentifier "x" ])) , ERoot (EIdentifier "x") (ENumber "3") ] >>> mml $$\frac{\sqrt[x-3]{x-3}}{\sqrt[x-3]{3x}}\sqrt[x]{3}$$