Technique

[jono]

In some notes you are supposed to reach up to fourteen white keys with you left hand, and still play legato..! If the first note is very low, and you are supposed to hold it for 3beats in 3/4 tempo, and at the same time play 14 keys higher up, and hold that tone...   How am i supposed to play then??  Using the right pedal, or is ther some magique technique that i don't know of?  Please try to give an answer 
jono

[xvimbi]

Choices depending on circumstances:

1. Use both hands
2. Use the pedal
3. If the piece is fast and you move fast, the result will sound legato(ish)