Marble provided 15 points with eight rebounds and White helped out with 13 and seven as the Hawkeyes (12-2) racked up their 18th straight home win.
Jarrod Uthoff came off the bench to pop in 11 points.
The Cornhuskers (8-5, 0-1) got 20 points and 12 rebounds from Terran Petteway.
Walter Pitchford also logged a double-double with 13 and 12.
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