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cbrt(2+log1/5*x)*((x-15)*(x-27))/(x-30)>0

cbrt(2+log1/5*x)*((x-15)*(x-27))/(x-30)>0 inequation

A inequation with variable

The solution

You have entered [src]
    ______________                      
   /     log(1)*x                       
3 /  2 + -------- *(x - 15)*(x - 27)    
\/          5                           
------------------------------------ > 0
               x - 30                   
$$\frac{\left(x - 15\right) \left(x - 27\right) \sqrt[3]{\frac{x \log{\left(1 \right)}}{5} + 2}}{x - 30} > 0$$
(x - 1*15)*(x - 1*27)*(log(1)*x/5 + 2)^(1/3)/(x - 1*30) > 0
Detail solution
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
Solving inequality on a graph
Rapid solution [src]
Or(And(15 < x, x < 27), And(30 < x, x < oo))
$$\left(15 < x \wedge x < 27\right) \vee \left(30 < x \wedge x < \infty\right)$$
((15 < x)∧(x < 27))∨((30 < x)∧(x < oo))
Rapid solution 2 [src]
(15, 27) U (30, oo)
$$x\ in\ \left(15, 27\right) \cup \left(30, \infty\right)$$
x in Union(Interval.open(15, 27), Interval.open(30, oo))
The graph
cbrt(2+log1/5*x)*((x-15)*(x-27))/(x-30)>0 inequation