3根号40-根号五分之二+2根号十分之一
=3√40-√(2/5)+2√(1/10)
=6√10-(√10)/5+2√10
=8√10-(1/5)√10
=(49√10)/5
5根号2+根号8-7根号8
=5√2+√8-7√2
=5√2+2√2-7√2
=0
三分之一根号32+根号二分之八-五分之一根号50
=(√32)/3+8/√2+(1/5)√50
=(4/3)√2+4√2+√(50/25)
=(4/3)√2+4√2+√2
=[(4+15)/3]√2
=(19/3)√2
3根号40-根号五分之二+2根号十分之一
=3√40-√(2/5)+2√(1/10)
=6√10-(√10)/5+2√10
=8√10-(1/5)√10
=(49√10)/5
5根号2+根号8-7根号8
=5√2+√8-7√2
=5√2+2√2-7√2
=0
三分之一根号32+根号二分之八-五分之一根号50
=(√32)/3+8/√2+(1/5)√50
=(4/3)√2+4√2+√(50/25)
=(4/3)√2+4√2+√2
=[(4+15)/3]√2
=(19/3)√2