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what causes a solution to a rational equation to be an extraneous solution? when there is more than one solution, one of the solutions is extraneous. if a solution results in zero when substituted into the denominator of the equation, the solution is extraneous. if a solution results in a negative number when substituted into the denominator of the equation, the solution is extraneous. when a solution is a fraction, the solution is extraneous.

User Uraza
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when there is more than one solution, one of the solutions is extraneous.
User Narayana
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