Bell connected on four 3-pointers for the Bulldogs (7-1), who sank a dozen treys overall in the one-sided win.
Gerard Coleman contributed 14 points and Kyle Dranginis added 12 as Gonzaga returned home following a fifth-place showing at the Maui Invitational.
Coppin State (2-4) was led by 10 points each from Sterling Smith and Arnold Fripp.
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