化简:根号下[x-1+2√(x-2)]+根号下[x-1-2√(x-1)]

2025-03-31 14:30:17
推荐回答(2个)
回答1:

提个思路

回答2:

根号下[x-1+2√(x-2)]
=根号下[x-1+2*1*√(x-2)]
=根号下[√(x-2)+1]^2
=(x-2)+1

根号下[x-1-2√(x-1)] 打错了吧