Create a mathematical expression based on the given requirements.
Requirements:
- a parameter x
- 2x to the power of 4
The mathematical expression based on the given requirements is: `2x^4`
Complete the following task based on the instruction and optional input provided.### Instruction:
Create a mathematical expression based on the given requirements.

### Input:
Requirements:
- a parameter x
- 2x to the power of 4

### Output:
The mathematical expression based on the given requirements is: `2x^4`