Stewart led a strong night for USC's bench, which outscored Long Beach's reserves, 23-3.
Dewayne Dedmon had eight points and 10 rebounds for the Trojans, who recorded only their third 2-0 start in the past 11 years.
USC went on a 23-4 run after Long Beach State tied it at 35 early in the second half. Dedmon capped the run with a tip-in of Terrell's miss, then dunked an alley-oop pass from Byron Wesley for a 58-39 lead.
Nike Men's USC Trojans Cardinal Basketball Practice ELITE Stripe ShortsShop
Mike Brey is looking at former Notre Dame players to fill two assistant jobs that have opened up with the departures of Martin Ingelsby and Anthony Solomon.
Purdue's 2016-17 prospects got a jolt Wednesday when forward Caleb Swanigan announced he will return for his sophomore season.
Clemson's Jaron Blossomgame says he is withdrawing from the NBA draft and returning to school for a final season.