l3/m3+m3/n3+n3/l3-3
eh? eh?
try using some parentheses, as you can see that the online formatting is poor.
At least some spaces, to indicate breaks. And are those exponents, as in
m^3 = m cubed
try using some parentheses, as you can see that the online formatting is poor.
At least some spaces, to indicate breaks. And are those exponents, as in
m^3 = m cubed