nLab
completing the square

12ax 2bx=12a(xb/a) 212b 2a 1 \tfrac{1}{2} a x^2 - b x = \tfrac{1}{2} a(x - b/a)^2 - \tfrac{1}{2}b^2 a^{-1}

References

Last revised on November 17, 2015 at 08:50:44. See the history of this page for a list of all contributions to it.