Final answer:
The expression log^3 40 - log^3 10 can be combined into a single logarithm, which is log^3 4.
Step-by-step explanation:
To combine the expressions log^3 40 - log^3 10 into a single logarithm, we can use the property of logarithms that states log a - log b = log(a/b).
Using this property, we have:
log^3 40 - log^3 10 = log^3 (40/10) = log^3 4
So, the expression log^3 40 - log^3 10 is equal to log^3 4.