Answer:
1. x^8
2.1
3.x^15
4.x^10
5.x^6
6.x^5y^5
7.x^-6
8.x^9
9.x^14
10.x^5
11.x^-1
12.x^11
Step-by-step explanation:
E
You can easily solve this by rearranging the ones that look alike. 7a^2-5a^2+10a-3a=5a^2+7a