Hill was 17 of 31 for 278 yards and an interception and ran for 36 yards. Jamaal Williams ran for 79 yards on 14 carries for BYU (3-2) and Justin Sorenson kicked a 27-yard field goal.
Chuckie Keeton and Craig Harrison threw touchdown passes for Utah State (3-3). Keeton left with a knee injury with 4:06 left in the first quarter after a third-and-15 running play. He was on the sideline on crutches during the second half as the Aggies' nine-game home winning streak ended.
Leading 17-7 at halftime, BYU struck quickly in the third quarter. Hill hit Matthews with a 6-yard fade pass to the corner of the end zone early in the quarter, and Matthews then hauled in a 43-yard pass with 5:52 left in the quarter to make it 31-7.
Harrison was 5 of 5 passing with one TD on the season before taking over for Keeton. Harrison found Ronald Butler on an 8-yard pass for a late-game touchdown. The junior had 185 yards on 18-of-41 passing and ran for 38 yards. Joey DeMartino ran for 80 yards on 16 carries.
BYU scored on the first play from scrimmage when Van Noy grabbed Keeton's pass at the line of scrimmage and ran 15 yards untouched for a touchdown. Just moments later, Utah State stripped Hill of the ball, with Brian Suite recovering the fumble. Three plays later, Keeton found Travis Van Leeuwen with a 7-yard TD pass.
The Cougars took a 17-7 halftime lead after Hill found Matthews for a 30-yard touchdown pass with 10:40 to play in the second quarter.
Van Noy's score was only the third time in 22 games that Utah State had allowed a first-quarter touchdown, dating to the 2011 season. It was Keeton's second interception of this season.
LSU added to its future running back group by picking up a commitment from the playmaking Edwards-Helaire.
Check out the final seconds of Duke's win over Virginia, with the Cavaliers' Malcolm Brogdon scoring a go-ahead layup, followed by Grayson Allen driving to the other end to score an off-balance bucket at the buzzer.
John Lattner, the 1953 Heisman Trophy winner who helped lead Notre Dame to a 9-0-1 record and a No. 2 ranking in Frank Leahy's final year as coach, has died. He was 83.
Jabbar Juluke, the former running backs coach at Louisiana Tech who spent just one month at Texas Tech, will assume the same role on Les Miles' staff at LSU.
Corey Robinson is returning for his senior year on the gridiron at Notre Dame while also assuming the responsibilities of student-body president.
Baylor will hire more counselors and provide additional training for faculty in an effort to improve the school's response to sexual assault incidents, school regents said Friday.