Find all solutions.
-$$x ^ { 3 } + 2 x ^ { 2 } + 9 x + 18 = 0$$
A) $\{ 2 \}$
B) $\{ - 3,3 , - 2 \}$
C) $\{ - 2 \}$
D) no real solution

Name: Find all solutions. -\[x ^ { 3 } + 2 x ^ { 2 } + 9 x + 18 = 0\] A) $\{ 2 \}$ B) $\{ - 3,3 , - 2 \}$ C) $\{ - 2 \}$ D) no real solution
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Question

Quizplus · Accepted Answer

The polynomial can be factored as $(x + 2)(x^2 + 9) = 0$. The quadratic $x^2 + 9$ has no real roots, so the only real solution is $x = -2$.

Find All Solutions x3+2x2+9x+18=0x ^ { 3 } + 2 x ^ { 2 } + 9 x + 18 = 0x3+2x2+9x+18=0

Find All Solutions $x ^ { 3 } + 2 x ^ { 2 } + 9 x + 18 = 0$