User:Tparameter/Sandbox: Difference between revisions

Content deleted Content added
No edit summary
Line 1:
 
==Example==
 
Line 7 ⟶ 6:
Find <math>{x}</math>.
Using the [[quadratic formula]], it is easy to find the solutions
:<math>{x = 7, -4}</math>, where <math>{ x = -4 }</math> is an '''extraneous solution'''.
 
 
==Books==