Answer:
[tex]x = \frac{1}{6},x = - 1[/tex]
Step-by-step explanation:
The given rational expresion is
[tex] f(x) = \frac{ - 11x + 1}{ - 30 {x}^{2} - 25x + 5 } [/tex]
This expression is undefined, when the denominator is zero.
[tex] - 30 {x}^{2} - 25x + 5 = 0[/tex]
Divide through by -5
[tex]6 {x}^{2} + 5x - 1 = 0[/tex]
We factor to obtain:
[tex](6x - 1)(x + 1) = 0[/tex]
Hence the function is undefined when
[tex]x = \frac{1}{6},x = - 1[/tex]