In previous units, we have used the rules of factoring to solve quadratic equations. In this unit, we learn three new methods for solving quadratic...

In previous units, we have used the rules of factoring to solve quadratic equations. In this unit, we learn three new methods for solving quadratic equations: the principle of square roots, completing the square, and the quadratic formula.

Part A: Which method for solving quadratic equations do you find the easiest to understand and use? Why?

Part B: Name one field other than pure mathematics that uses quadratic equations, and give an example of how they are used (just an explanation, not a problem worked).

This is just a discussion board question.