How can I simplify the radical -LSB- math -RSB- \ sqrt -LCB- 72 -RCB- -LSB- / math -RSB- ?
How can I simplify -LSB- math -RSB- \ sqrt -LCB- n - \ sqrt -LCB- 2n-1 -RCB- -RCB- - \ sqrt -LCB- n + \ sqrt -LCB- 2n-1 -RCB- -RCB- -LSB- / math -RSB- ?