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Algebra

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After solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?

  • Algebra -

    That's why you check. If a fraction has zero denominator, it is undefined.

    If b = a/0
    then b*0 = a

    There is no number you can multiply by 0 to get a nonzero value.

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