1.根号48-根号27--2根号1/8+根号75 =4根号3-3根号3-1/2根号2+5根号3=6根号3-1/2根号22. (3倍的根号0.5+4倍的根号1.5)-(1/2根号0.24-根号2/9)=3/2根号2+2根号6-1/10根号6+1/3根号2=11/6根号2+19/10根号63. 3x倍的根号y/x+y倍的根号x/y-根号x的3次方y+根号xy的三次方=3根号xy+根号xy-x根号xy+y根号xy=(4-x+y)根号xy
2呗根号三