Question 738252
Factor completely: 8a4b - 24ab4 
:
Assume you mean:
{{{8a^4b - 24ab^4}}}
see that you can factor out 8ab, leaving
{{{8ab(a^3 - 3b^3)}}}
;
;
prove this to yourself, multiply both terms inside the brackets by 8ab
See that you get the original problem.