i need help

if

calculate B3-3B2-B+3I

the B3 and the 3B2 the 3 and the 2 are above but i dont know how to type them here

please help how im gonna calculate B if i only know A?

pls answer me someone

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- October 10th 2009, 06:36 AMgdilmMatrix Question?
i need help

if

calculate B3-3B2-B+3I

the B3 and the 3B2 the 3 and the 2 are above but i dont know how to type them here

please help how im gonna calculate B if i only know A?

pls answer me someone - October 10th 2009, 07:05 AMHallsofIvy