The quadratic formula uses the a b and c from ax2 bx c where a b and c are just numbers they are the numerical coefficients of the quadratic equation theyve given you to solve. Visit http ilectureonlinecom for more math and science lectures in this lecture i will take the mystery out of the quadratic equation and help you unders. Understanding math quadratic formula english edition ebook isaac tamblyn brian boates amazonde kindle shop. The standard quadratic formula is a lot to remember its a maze of numbers letters and square roots its derived from completing the square on a general quadratic equation ax2 bx c 0 a x 2 b x c 0 there are several good explanations for the standard formula heres my intuition for a variation. The quadratic formula helps you solve quadratic equations and is probably one of the top five formulas in math were not big fans of you memorizing formulas but this one is useful and we think you should learn how to derive it as well as use it but thats for the second video if you have a general quadratic equation like this
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