karlanderson/khan-exercises — pull request #4 by karlanderson (2012-11-10 20:43:36+00:00)
Title: Fixes Extra hint for Solving Quadratics and other minor bugs

Fixes Open #33388 #33076 #33077 Closed #31645 #29435 #30472 #30400
#27614
Solving quadratics by factoring (& 2) added and extra hint for the
one-root problem. Both used appendContents but recently multiple
problem had one more hint than one-root problem added. Kept the new
text, but merged the new hint with old.

Also minor typos that were generating errors (missing ";", missing

)