In Egyptian mythology, Apis was the bull god of Memphis, Egypt. He was personified on Earth by any black bull with a white triangle on its forehead. These bulls were slaughtered at twenty-five years old. His cult was associated with Ptah, and the underworld (Duat)
Alternative: Hap
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... we get
<math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math>
Generalizations
The formula and its proof remain ...