Which method of solving quadratic equations should be used when only an estimated solution is necessary?

Question

Which method of solving quadratic equations should be used when only an estimated solution is necessary?
factoring
quadratic formula
graphing

Answer 1

i think quadratic formula because after works you can use the caculator

Answer 2

Use the quadratic formula, unless the expression only has two terms. I suggest using the quadratic formula because it works for all quadratic equations. Don't waste time trying factoring a quadratic trinomial. Graphing takes as much time as the quadratic equation.

Owens

Answer 3

Trial and error is the best of all. Graphing doesn't not work if the roots are imaginary. So you're probably best off using the formula.