Find the difference. 9 3x - 4 2x2

We are tasked to determine the difference between the two expressions such as 9+3x and 4+2x². In order for us to solve this, we need to arrange the terms in descending order such as shown below:

(3x + 9) and 2x² + 4

Then, we need to perform subtraction in the same terms only such as 9 and 4:

3x + 9 - (2x² + 4)

3x + 9 - 2x² - 4

3x + 5 - 2x²

Then arrange in descending order such as:

2x² + 3x + 5

The answer is 2x²+3x+5.