Find All Numbers for Which the Rational Expression Is Not

question 96

Multiple Choice

Find all numbers for which the rational expression is not defined.
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• A) x = -5 and x = 7
• B) x = 5 and x = -5
• C) x = 5 and x = -7
• D) x = 0

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Definitions:

Se

Selenium, a nonmetal element with properties that are intermediate between those of metals and nonmetals, used in various industrial applications.

Lewis Dot Structure

A representation of the valence electrons in an atom or molecule, illustrating the bonds between atoms and lone pairs of electrons.

Chlorine

A chemical element with symbol Cl and atomic number 17, known for its high reactivity and use as a disinfectant.

Ionic Compound

A chemical compound comprising ions held together by electrostatic forces termed ionic bonding.