foil method gone wrong

[drea13]

(5th root 4-5th root 2)(5th root 125+5th root 8)
so i did this
5th root 500+ 5th root 24 - 5th root 250 - 5th root 16
123+ 5th root 24 - 5th root 250?

i know this is wrong but not sure where i went wrong in foiling

 

[Deleted member 4993]

(5th root 4-5th root 2)(5th root 125+5th root 8)

so i did this

5th root 500+ 5th root 24 - 5th root 250 - 5th root 16 <<<< That should be 4*8 = 32

123+ 5th root 24 - 5th root 250 <<< How did you get that?

i know this is wrong but not sure where i went wrong in foiling