Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f (x ) = x3 + 3x2 -144X X : X Submit Answer 8. [-/0.33 Points] DETAILS SCALCET8 4.1.032. Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) F (x ) = 6*3 + x2+ 6x 9. [-/0.33 Points] DETAILS SCALCET8 4.1.035.MI. Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) g( )) = - y - 3 y2 - 3y + 9 Need Help? Watch It Master It 10. [-/0.33 Points] DETAILS SCALCET8 4.1.037.MI. Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter ONE.) h(t) = 3/4 - 3+1/4