which can be derived by first dividing a quadratic equation by , resulting in , then substituting the new coefficients into the standard quadratic formula. Because this variant allows re-use of the intermediately calculated quantity , it can slightly reduce the arithmetic involved.
which can be derived by first dividing a quadratic equation by  resulting in  then substituting the new coefficients into the standard quadratic formula Because this variant allows re-use of the intermediately calculated quantity , it can slightly reduce the arithmetic involved.