Question

(3x + 1/X)^3 solve this​

Answer 1

Answer:

$identity -\\ \\ \\</p><p>(a+b)^3 = a^3+b^3+3ab(a+b)\\ \\ \\</p><p>(3x+\frac{1}{x})^3 = \\ \\ \\</p><p>(3x)^3 +(\frac{1}{x})^3+3(3x × \frac{1}{x})(3x+\frac{1}{x})\\ \\ \\</p><p>27x^3+\frac{1}{x^3} +9(3x+\frac{1}{x})\\ \\ \\</p><p>27x^3+\frac{1}{x^3}+27x+\frac{9}{x}$