WikiWiki>Know-how Wiki
Know-how Wiki is a wiki which provides opportunities to ask or give advice on how to solve particular problems. The content is publicly released under the GNU Free Documentation License.
The site relies on UseModWiki software and incorporates links into a number of other wikis (including this one) using the InterWiki mechanism.
... is positive, then there are two different solutions x, both of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.)
If ...