Question 322984
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ s^2\ -\ 4s\ -\ 45\ =\ 0]


This little monster factors quite tidily.  Hint:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ -9\ +\ 5\ =\ -4]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ -9\ \times\ 5\ =\ -45]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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