根号55.5的二次方减33...3的二次方根号(55...5二次方减33...3的二次方)=?共有80个5,80个3

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根号55.5的二次方减33...3的二次方根号(55...5二次方减33...3的二次方)=?共有80个5,80个3

根号55.5的二次方减33...3的二次方根号(55...5二次方减33...3的二次方)=?共有80个5,80个3
根号55.5的二次方减33...3的二次方
根号(55...5二次方减33...3的二次方)=?
共有80个5,80个3

根号55.5的二次方减33...3的二次方根号(55...5二次方减33...3的二次方)=?共有80个5,80个3
原式=根号[(111..11)^2*(5^2-3^2)=111...111*4=444...44(80个4)

根号(55...5二次方减33...3的二次方)
=根号((55...5-33...3)(55...5+33...3))
=根号(22...2*88...8)
=11...1*4
=44...4(80个4)

22...2 80个2