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Published in:
2015 | OriginalPaper | Chapter
Complex Numbers
Authors : Radmila Bulajich Manfrino, José Antonio Gómez Ortega, Rogelio Valdez Delgado
Published in: Topics in Algebra and Analysis
Publisher: Springer International Publishing
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The roots of a quadratic equation are not always real numbers. For instance, the roots of the equation
$$x^2+2x+10=0$$
, which can be calculated using directly equation (4.6) of Section 4.2, are
$$\frac{-2+\sqrt{{-36}}}{2}\quad \mathrm{and}\quad \frac{-2-\sqrt{{-36}}}{2}$$
.