Aquadratic equation is shown below:

9x2 - 16x + 60 = 0

part a: describe the solution(s) to the equation by just determining the discriminant. show your work.

part b: solve 4x2 + 8x - 5 = 0 by using an appropriate method. show the steps of your work and explain why you chose the method used.

part c: solve 2x2 -12x + 5 = 0 by using a method different from the one you used in part b. show the steps of your work.