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OpenStudy (anonymous):
see attachment in second post. it concerns linear algebra.
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OpenStudy (anonymous):
OpenStudy (anonymous):
The answer is 18, 5, 0. For the first operation I've tried: (2*1) + (2*-2)+(2*1)≠ 18 and I've also tried (2*1)+(2*2)+(2*4)≠ 18
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