How do you simplify $[(12,0,8),(9,15,-11)]-[(-3,0,4),(9,2,-6)]$ ?

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Answer 1 · 2016-12-23T17:52:58

Given:

$[ (12,0,8), (9,15,-11) ] − [ (−3,0,4), (9,2,−6) ] =$

$[ (12 - -3,0 - 0,8-4), (9 - 9, 15-2,-11- -6) ] =$

$[ (15,0,4), (0, 13,-5) ]$

How do you simplify [(12,0,8),(9,15,-11)]-[(-3,0,4),(9,2,-6)][(12,0,8),(9,15,-11)]-[(-3,0,4),(9,2,-6)]?