Solve the Inequality $$x ^ { 3 } + 3 x ^ { 2 } - 9 x \leq 27$$

question 171

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $$x ^ { 3 } + 3 x ^ { 2 } - 9 x \leq 27$$

• A) \([ 3 , \infty )\)
• B) \([ - 3,3 ]\)
• C) \(( - \infty , - 3 ] \cup [ 3 , \infty )\)
• D) \(( - \infty , 3 ]\)

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