Given the inequality:
$$\frac{\left(x - 15\right) \left(x - 27\right) \sqrt[3]{\frac{x \log{\left(1 \right)}}{5} + 2}}{x - 30} > 0$$
To solve this inequality, we must first solve the corresponding equation:
$$\frac{\left(x - 15\right) \left(x - 27\right) \sqrt[3]{\frac{x \log{\left(1 \right)}}{5} + 2}}{x - 30} = 0$$
Solve:
$$x_{1} = 15$$
$$x_{2} = 27$$
$$x_{1} = 15$$
$$x_{2} = 27$$
This roots
$$x_{1} = 15$$
$$x_{2} = 27$$
is the points with change the sign of the inequality expression.
First define with the sign to the leftmost point:
$$x_{0} < x_{1}$$
For example, let's take the point
$$x_{0} = x_{1} - \frac{1}{10}$$
=
$$- \frac{1}{10} + 15$$
=
$$\frac{149}{10}$$
substitute to the expression
$$\frac{\left(x - 15\right) \left(x - 27\right) \sqrt[3]{\frac{x \log{\left(1 \right)}}{5} + 2}}{x - 30} > 0$$
$$\frac{\left(\left(-1\right) 15 + \frac{149}{10}\right) \left(\left(-1\right) 27 + \frac{149}{10}\right) \sqrt[3]{\log{\left(1 \right)} \frac{1}{5} \cdot \frac{149}{10} + 2}}{\left(-1\right) 30 + \frac{149}{10}} > 0$$
3 ___
-121*\/ 2
---------- > 0
1510
Then
$$x < 15$$
no execute
one of the solutions of our inequality is:
$$x > 15 \wedge x < 27$$
_____
/ \
-------ο-------ο-------
x_1 x_2