Answer:
6x²+11x-3
Step-by-step explanation:
5x²+2x+x²+9x-3=
You can't put the x² and x together since you don't know what x is.
Add terms that have only x together and terms that only have x² together and terms that have neither x or x²
5x to the second power with x to the second power
2x with 9x
3 is by its self
