Use Descartes' Rule of Signs to Determine the Possible Number

question 487

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.
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f ( x ) = 9 x ^ { 6 } - 8 x ^ { 4 } - 3 x ^ { 3 } + 9 x ^ { 2 } - 8 x

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Definitions:

Lewis Structure

A graphical representation illustrating how atoms in a molecule are bonded together and depicting any unpaired electrons present within the molecule.

Boron Trifluoride

A chemical compound with the formula BF3, known for its role as a strong Lewis acid in organic and inorganic chemical reactions.

Octet

A rule in chemistry stating that atoms tend to combine in such a way that they each have eight electrons in their valence shells, giving them the same electronic configuration as a noble gas.