Difference between revisions of "Quadratic equation"

This page is a stub, so it contains little or minimal information and is on a to-do list for being expanded.The message provided is:
This page needs to be linked in with the abstract definition of formal polynomials, the space they're on ect. However none of this is needed yet. I'm writing this to make my answering of a question more useful Alec (talk) 11:51, 9 March 2019 (UTC)

Information

Only turning point

• $\frac{d}{dx}\big[ax^2+bx+c\big]\Big\vert_{x}\eq 2ax+b$

We are interested in the derivative being zero, ie:

• [ilmath]2ax+b\eq 0[/ilmath]
[ilmath]\implies 2ax\eq -b[/ilmath]
$\implies x\eq\frac{-b}{2a}$ Confirmed