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anonymous

  • 4 years ago

When should I use the Ax2+Bx+C formula and when should I use the Quadratic formula?

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  1. anonymous
    • 4 years ago
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    Pretty much |dw:1327786172590:dw| vs the other formula. Under what circumstances do I use one over the other?

  2. phi
    • 4 years ago
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    Ax^2 +Bx +C is not a formula. If you are asking, when should I use the quadratic formula to find the roots of Ax^2 +Bx +C = 0 I would say, any time you can not easily factor the quadratic. for example x^2 + 2x +1 can be factored into (x+1)(x+1), so its roots are -1 (repeated) you could also do x =(1/2)*(-2 ± sqrt(4-4)) = -1 (twice)

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