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Why is the answer I chose incorrect?

x 17. For what value of c will the following function have real roots? x + 9x² + 26x² + c - O A.-2 B. 3 C.7 D. 12

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Answer #1

are ordered Descartes rule of Signs: The rule states that if the montero term of a single -varible polynomial with real . coif cro then the terms of the the signs polynomial earry + tte so their is one changes of signe. There fore by Descartes rule

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