Question

root 125 - 5 root 5
simplify the above question

Answer 1

125 is cube root of 5.$\sqrt{x}$125-5 =5-5=0
 

Answer 2

root 125 - 5 root 5 = √125 - 5√5
                           = √25*√5 - 5√5
                           = 5√5 - 5√5
                           = 0