Answer
(a) $-\frac{1}{5},1$.
(b) $(-\frac{1}{5},1)$.
(c) $(-\infty,-\frac{1}{5}]\cup[1,\infty)$.
Work Step by Step
See graph for the two given functions.
(a) We can identify the solution as $x=-\frac{1}{5},1$.
(b) We can identify the solution as $(-\frac{1}{5},1)$.
(c) We can identify the solution as $(-\infty,-\frac{1}{5}]\cup[1,\infty)$.