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The Zero Product Property cannot be used when the right side of the equation is:
ANot equal to zero
BExactly equal to zero
CAny whole number
DA single variable
Answer & Solution
Correct answer: A. Not equal to zero
1. The name of the property states its own requirement.
2. Factoring a quadratic sets up a product of two factors.
3. The Zero Product Property requires that product to equal zero.
4. If the right side is not zero, the Zero Product Property cannot be used.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 10 'Quadratic Equations', sections 10.1-10.5_
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