User talk:60.241.242.96

February 2009
Welcome to Wikipedia. The recent edit you made to Quadratic equation has been reverted, as it appears to have removed content from the page without explanation. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Alansohn (talk) 01:49, 8 February 2009 (UTC)