I need more help in factoring? How will I factor 2a^3b^3 - 8m^3?

Question

I tried factoring with the use of the difference of cubes but when I check my answer using multiplication, I can't go back to the original polynomial.

Answer 1

Did you type it right? The answer doesn't work.

2(ab- cr (4)m)(a^2b^2+ cr (4)abm+ cr (4)^2m^2)

cr means cube root

This problem was probably a typo.  They probably didn't want the two out in front or wanted the eight to be sixteen.