Question

please answer to my question​

Answer 1

Answer:

-36

Step-by-step explanation:

$x -\frac{1}{x} = -3$

on cubing both sides

$:. x^{3} -\frac{1}{x^3} - 3 x^2 * \frac{1}{x} + 3 x * \frac{1}{x^2} = -27\\\\:. x^{3} -\frac{1}{x^3} - 3(x - \frac{1}{x}) = -27\\\\:. x^{3} +\frac{1}{x^3} -3(-3) = -27\\\\:. x^{3} +\frac{1}{x^3} + 9= -27\\\\:. x^{3} +\frac{1}{x^3} = -36$

unfortunately the answer is not of the options given, but this answer (-36) is surely correct!