Question 194804
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Use the Zero Product Rule:  If *[tex \LARGE  ab = 0] then *[tex \LARGE  a = 0] or *[tex \LARGE  b = 0].


So either *[tex \LARGE  8n = 0] which means that *[tex \LARGE  n = 0] or


*[tex \LARGE  10n - 1 = 0]  which means that *[tex \LARGE  n = \frac{1}{10}]


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