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  • 07-11-2016
  • Mathematics
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Solve 9x^2 + 12x – 24 = 0 using the quadratic formula.

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  • 07-11-2016
Quadratic formula = (-b +- sqrt(b^2 - (4ac))) / 2a

[tex] \frac{ -12 + \sqrt{(12)^2 -((4)(9)(-24))}}{2(9)} [/tex]

and

[tex] \frac{ -12 - \sqrt{(12)^2 -((4)(9)(-24))}}{2(9)} [/tex]

then simplify and solve
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