Answer:
![5x^4+3x^2 + 4x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/7fpy9gfcwn32vdetw6itg7tq370eehwmzj.png)
Explanation:
Hello!
To add the polynomials, we simply add up the like terms.
Like terms are terms with the same variable and power.
The only like terms here are the two integers: 6 and -6. We simply add all the terms and combine the integers.
Add
The simplified expression is
.