If $x^2+bx+9$ has two non-real roots, find all real possible values of $b$. Express your answer in interval notation.
Question:
If $x^2+bx+9$ has two non-real roots, find all real possible values of $b$. Express your answer in interval notation.
Answer:
Let's think step by step.

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(-6, 6)
If $x^2+bx+9$ has two non-real roots, find all real possible values of $b$. Express your answer in interval notation.
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