Question

Please help! How exactly would I work out this problem? Use the cut point method to find the solution set of the inequality x^3+3x^2-4x-12>0.
One cut point is?

Answer 1

a. -2
b. 12
c. 1
d. -4

Answer 2

Would the answer be a.?

Answer 3

I think so, if the cut points are those values of x that cause the LHS to be zero.

Answer 4

Hmm, sounds right. Thank you for your input.