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divide coefficient of the first degree by two then multiply by -1 for the center. Borrow from the zero degree then square root for the radius. Simple, right?

Go down in degrees starting at 2 and ending at 0. Add a term to the each polynomial Simple, right? Dont insult me - Im in seventh grade

aX^2 +bX + c (factor of a + factor of c)(corresponding factor of a + correspondingfactor of c) both factors of c, when multiplied by its opposite constant, must add up to b. Guess and check!