Jaime Jaquez Jr. scored 24 points and collected a career-high 15 rebounds to lead No. 9 UCLA to an easy 76-52 victory over Washington State in Pac-12 play on Saturday at Los Angeles.Jaylen Clark added 12 points and Amari Bailey had 10 as the Bruins (19-4, 10-2 Pac-12) stretched the nation’s longest homecourt winning streak to 21. UCLA is 13-0 this season at Pauley Pavilion.TJ Bamba scored 19 points and Justin Powell added 17 for Washington State (10-15, 5-9). Big man Mouhamed Gueye had just six points on 3-of-13 shooting as the Cougars lost for the fifth time in their past six games.Washington State dropped to 3-62 all-time against the Bruins in Los Angeles.Tyger Campbell had nine assists and Adem Bona contributed nine points and three blocked shots for UCLA.Washington State’s DJ Rodman (illness) missed his second straight game.UCLA shot 48.4 percent from the field, including 9 of 22 from 3-point range.The Cougars hit just 30.9 percent of their shots and were 9 of 27 from behind the arc. Powell had five treys for Washington State.UCLA led by nine at halftime and pushed its lead up to 42-28 on Jaquez’s 3-pointer with 17:39 remaining.