Question 882208
Dips down toward the left, tips upward toward the right, has a root at x=3.


{{{x(x^2+9x+15)}}}
other roots are {{{(-9-sqrt(81-60))/2}}} and {{{(-9+sqrt(81-60))/2}}},
These roots:    {{{(-9-sqrt(21))/2}}} and {{{(-9+sqrt(21))/2}}};
Compute them if you want to.


{{{graph(300,300,-9,5,-15,25,x^3+9x^2+15x)}}}