(√8-√2分之1)÷(√50-√32) (√2-√12)(√18+√48)快滴!

问题描述:

(√8-√2分之1)÷(√50-√32) (√2-√12)(√18+√48)
快滴!

=(2√2-√2/2)÷(5√2-4√2)
=3√2/2÷√2
=3/2
(√2-√12)(√18+√48)
=(√2-2√3)(3√2+4√3)
=6+4√6-6√6-24
=-18-2√6