In college we have been given an exercise about Quadratic Equations, before the actual assignment. We have been told that we need to use three different methods for three different equations. The methods are: The Quadratic Formula, Factorization and Graphical. We have been given three formulas for practice before the actual work, I was hoping possibly somebody could demonstrate how to do them because I do not fully understand them. These are the formulas: X=2x² - 3x – 20 X=2x² - 6x – 5 X=2.5x² - 7.9x + 1.341 All help would appreciated, if someone could complete the equations for a demonstration would be very much appreciated. Thanks.