问题标题:
1(根号3+根号2x根号6)(2)根号98÷根号2-根号2x2根号6(3)(3根号6+根号24)除根号2
问题描述:

1(根号3+根号2x根号6)(2)根号98÷根号2-根号2x2根号6(3)(3根号6+根号24)除根号2

黄丞回答:
  (1)根号3+根号2x根号6)   =根号3+2根号3   =3根号3   (2)根号98÷根号2-根号2x2根号6   =7根号2÷根号2-4根号3   =7-4根号3   (3)(3根号6+根号24)÷根号2   =(3根号6+2根号6)÷根号2   =4根号6÷根号2   =4根号3
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