HP 35S - Roots of cuadratic equation Program

[engcol]

If Somebody has tried the roots of cuadratict equation program for HP-35s following link:

http://homepage.mac.com/nwjh/HP-35S/HP-35s_Math_1.pdfan

Can please tell me if it works?

If it works how to introduce lineQ009. The instructions say :

(Key in using EQN RCL Q RCL U, etc.,) It looks I am doing something wrong, how exactly I have to introduce this line? Thanks