(根号8分之1-根号48)-(0.5-2又根号3分之1-根号32)

原式=[√(1/8)-√48]-[0.5-2√(1/3)-√32]
=√(1/8)-√48-0.5+2√(1/3)+√32
=√(2/4²)-√(4²×3)-0.5+2√(3/3²)+√(4²×2)
=√2/4-4√3-0.5+2√3/3+4√2
=(√2/4+4√2)+(2√3/3-4√3)-0.5
=17√2/4-10√3/3-1/2