原式=(4根号2-根号2/2-2/3根号3)*(根号2/4-4根号3-根号(25/8))
=(7/2根号2-2/3根号3)(根号2/4-5/4根号2-4根号3)
=(7/2根号2-2/3根号3)(-根号2-4根号3)
=-7/2*2-14根号6+2/3根号6+8/3*3
=1-40/3根号6
原式=(4根号2-根号2/2-2/3根号3)*(根号2/4-4根号3-根号(25/8))
=(7/2根号2-2/3根号3)(根号2/4-5/4根号2-4根号3)
=(7/2根号2-2/3根号3)(-根号2-4根号3)
=-7/2*2-14根号6+2/3根号6+8/3*3
=1-40/3根号6