1.) x = +/- 2.65
2.) x = +/- 3
3.) x = +/- 5
4.) x = +/- 1.58
5.) No Real Solution
6.) x = +/- 3.16
7.) x = -4/3 or x = 2
8.) x = -1 or x = -10
9.) x = 1 or x = -3
10.) x = 1/6 or x = -1
11.) The discriminant is 16. There are two solutions.
12.) The discriminant is 0. There is 1 solution.
13.) 1.37 seconds
14.) .85 seconds
15.) 2.61 seconds(If you look at my work I made a mistake. I couldn't read my own writing and did 1000+280 instead of 1600+280. The discriminant should be 1880)