We have to find what happens with f(x) when x grows very large.
The function is:
When x grows very large, the term that has a higher degree will be the one that have the greatest effect in the value of f(x).
In this function, the term with the highest degree is x³.
As x grows very large, so does x³. Then, we can conclude that f(x) will also rise as does x.
Answer: True.