①5√8-2√32+√50
=5*3√2-2*4√2+5√2
=√2(15-8+5)
=12苗卷叶丝慢异乐√2
②√6-√3/2-√2/3
=√6来自-√6/2-√6/3
=√6/6
③(√45+√27)-(√4/3+√125)
=(3√5+3√3)-(2√360问答3/3+5√5)
=-2√5+7√5/3
④(√4a-√50b)-2(√b/2+√9a)
=(2√a-5√2b)-2(√2b/2+3√a)
=-4√a-6√2b
⑤√4x*(√3x/令己业或三2-√x/6)
=2√x(√6x/2-√6x/6)
=2√x*(√6x/3)
=2/3*|x|*√6
诉阿雨走散展修动⑥(x√y-y√x)÷√xy
=x√y÷√xy-y√x÷√xy
情反着编父哥开控们止杨=√x-√y
⑦(3√7+2√3)(2√3-3√7)
=(2血积雨取电√3)^2-(3√7)^2
=12-63
=-51
⑧(√32-3√3)(4√2+√27)
=(4√2-3√3)(4√2+3√3)
=(4√2)^2-斗输既(3√3)^2
=32-27
况应表武了析载=5
⑨(3√6-√4)²
=(3√6)^2-2*3√6*√4+(√4)^2
=54-12√6+4
=58-12√6
⑩(1+√2-√3)(1-√2+√3)
=[1+(√经2-√3)][1-(√2-√3)]
=1-(√2-服必胡方读多起丰√3)^2
=1-(2+3+伯声2√6)
=-4-2√6
标签:计算题,根式