(1)|根号3-根号5|+|根号5-根号7| (2)根号-8的三次方+5根号27的三次方-8根号16分之1

问题描述:

(1)|根号3-根号5|+|根号5-根号7| (2)根号-8的三次方+5根号27的三次方-8根号16分之1
(3)根号3(根号3-3)求答案!

(1)|根号3-根号5|+|根号5-根号7|
=√5-√3+√7-√5
=√7-√3
(2)根号-8的三次方+5根号27的三次方-8根号16分之1
=-2+15-2
=11
(3)根号3(根号3-3)
=3-3√3