I wish I knew but someone will help you eventually
I believe your answer should be 105x squared-1475x+70
sorry i'm not really sure how to put the little two above the first x but my answer is mathematically correct.
Step-by-step explanation:
12 - 9 + c = 12
-9 + c = 12 - 12
- 9 + c = 0
Therefore c = 9
Hope this helps.!
The answer is 1;3 because if you simplified 2;6 you get 1;3 so the answer to that is
a: 1;3