2.4小题怎么算?
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2.4小题怎么算?
2.4小题怎么算?
2.4小题怎么算?
(5+√6)(5√2-2√3)
=25√2-10√3+5√12-2√18
=25√2-10√3+10√3-4√2
=21√2
(√6-2√15)*√3+8√(1/2)
=√18-2√45+4√2
=3√2-6√5+4√2
=7√2-6√5
(√是根号.*是乘)