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Solve the Inequality $\left| x ^ { 4 } + 6 x ^ { 2 } + 9 \right| > 0$

Question 495

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $\left| x ^ { 4 } + 6 x ^ { 2 } + 9 \right| > 0$

A) $\varnothing$
B) $( - 3,3 )$
C) $( - \infty , - 3 ) \cup ( 3 , \infty )$
D) $( - \infty , \infty )$

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