Question 1030088

Find all values of c such that $c^3  + 4c > 5c^2. Answer with interval notation.
<pre>3 critical points: 0, 1, and 4, which result in the following 4 intervals to check: {{{highlight_green(matrix(1,7, x < 0, ";", 0 < x < 1, ";", 1 <x < 4, ";", x > 4))}}}