See also: Roots Rock Reggae[?], Rastafarianism, Ras Tafari, Jamaican English, Amharic, Ethiopia, Bob Marley.
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... sides, 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 ...