Question 1025972: Describe three different ways to solve x^2 - 2x - 15 = 0. Which method do you prefer and why? Thanks! Found 2 solutions by Fombitz, MathTherapy:Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website! Graphing.
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Completing the square. and
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Quadratic equation. and
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Completing the square.
Gives an exact answer and also can give max/min values from vertex form.
More information than the other two methods. Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Describe three different ways to solve x^2 - 2x - 15 = 0. Which method do you prefer and why? Thanks!
Of the 3 methods, I prefer FACTORING, in this case, and in may other cases, when the trinomial can be factored with INTEGERS.
(x - 5)(x + 3) -------- Factoring the trinomial