Not sure what quadratic formula is but your answer is "No real Solutions"<span><span>
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Answer:

Step-by-step explanation:
- The sum of exterior angles of a polygon is equal to 360 degrees

Answer: 3rd graph
Explanation: In order to determine which graph shows a downward or negative slope, we need to be able to look at each of the graphs and determine which line is decreasing when going from left to right.
Notice that the 3rd graph is the only graph with a downward
or negative slope which means that this is our answer.
Answer:
Its infinite solutions because its the same exact thing when you simplify the first half of the problem.
Step-by-step explanation: