Question

By using the standard formula expand the following
(3x+1/x)³

Answer 1

Step-by-step explanation:

$(3x + \frac{1}{x} ) ^{3} \\ \\ = > (3x + \frac{1}{x} ) ^{2} (3x + \frac{1}{x} ) \\ = \\ \\ = > (9 {x}^{2} + \frac{1}{ {x }^{2} } + 6)(3x + \frac{1}{x} ) \\ \\ \\ = > 27 {x}^{3} + 9x + \frac{3}{x} + \frac{1}{ {x}^{3} } + 18x + \frac{6}{x} \\ \\ \\ \\ \\ = > 27 {x}^{3} + 27x + \frac{9}{x} + \frac{1}{ {x}^{3} } \: \: ans...$

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Answer 2

Step-by-step explanation:

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