The problem asks to determine the dominant term of the form $Cx^n$ as $x \to +\infty$, and to find the growth order of several given functions as $x$ grows large.

Let me summarize the steps for solving this type of problem:

1. Identify the dominant term: For each function, you need to express it in terms of $x$ and analyze which term grows the fastest as $x \to +\infty$. The fastest-growing term will be of the form $Cx^n$.
2. Determine the growth order: Once the dominant term is identified, the growth order is characterized by the exponent $n$ in $Cx^n$.

If you'd like, I can help solve the specific examples of functions that are given after this problem statement.

Would you like me to continue solving specific cases, or do you have any questions so far?

Here are 5 related questions:

1. What is the method for identifying the dominant term of a function as $x \to +\infty$?
2. How does the growth order change between polynomial, exponential, and logarithmic functions?
3. How do constants affect the asymptotic behavior of a function?
4. Can two functions have the same growth order but different dominant terms?
5. How do we compare the growth rates of multiple terms in a complex function?

Tip: When comparing terms, powers of $x$ dominate logarithmic and constant terms, while exponentials dominate powers of $x$.