Question 391048
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Did you write this problem correctly?  That is, do you actually mean:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4x^2\ +\ 11\ =\ 12]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4x^2\ =\ 1]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x^2\ =\ \frac{1}{4}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ \pm\sqrt{\frac{1}{4}}\ =\ \pm\frac{\sqrt{1}}{\sqrt{4}}\ =\ \pm\frac{1}{2} ]


Or did you mean


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4x^2\ +\ 11x\ =\ 12]



*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ \frac{-11\ \pm\ \sqrt{11^2\ -\ 4(4)(-12)}}{2(8)}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ \frac{-11\ \pm\ \sqrt{313}}{8}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ ]?


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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