Perhaps a corny catchphrase to some, those three words really resonate with the Golden State Warriors: ''Strength in Numbers.'' They are bought into this mantra, all right. Poll a few Warriors and they surely will bring up the defending champions' depth and ability to push forward, no matter who goes down. Golden State rolled right into the second round of the playoffs by embarrassing the Houston Rockets 114-81 on Wednesday night to win the best-of-seven series 4-1 as the league's leading scorer watched in delight.