Question 190546
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You multiply everything.  You actually have 5 factors, n, -1, n, 2, and n, so


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  n \times n \times n \times 2 \times -1 = -2n^3]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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