A) Solve the quadratic equation x^2+2x-3=0 by completing the square show all work
B) Solve the quadratic equation x^2+2x-3=) by utilizing the quadratic formula. Show all work
C) Can the square root method be used to solve the quadratic equation x^2+2x-3=0? Why or why not?
D) Provide one example of how quadratic equations are used in the real world. Include an example problem and show how it should be solved. Please include an original problem or be sure to cite your source if you are using example from somewhere else.