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After squaring both sides of a radical equation, a student finds a root that fails the original check. That root is:
AEquivalent
BElementary
CExtraneous
DExponential
Answer & Solution
Correct answer: C. Extraneous
1. It appeared through the solving process.
2. It does not satisfy the original equation.
3. It is an extraneous solution.
_Source: OpenStax College Algebra 2e, Chapter 2, Equations and Inequalities._
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