2010009504
Level:
B
Find the solution set of the following inequality.
\[
\left (x +2\right )\left (x +1\right )\left (x - 3\right )\leq 0
\]
\((-\infty ,-2] \cup [ -1,3] \)
\((-\infty ,-2] \)
\((-\infty ,-2] \cup [ -1,\infty )\)
\(\{-2,-1,3\}\)
\((-\infty ,3] \)