Answer:
i feel like correct answrr would be C. Hope this helps!!!
Mistake in Line 2 : Was in the determining the values for a ,b,c
Mistake in Line 4 : Not taking the square roots of both sides.
Step-by-step explanation:

First Mistake : Line 2

Second Mistake : Line 4

Correct Solution :


Answer:
1. 20%
2. 13 and 14
3. 52q
4. option 1
5. option 3
6. 6
Hope this helped :)
Step-by-step explanation:
Answer:
21
Step-by-step explanation: