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Find all numbers for which the rational expression is undefined?


Can someone help me figure this out?

  • Algebra -

    Is all of the 9w +7 supposed to be in the denominator, as in 3/(9w+7) ?

    The expression is undefined when the denominator is zero.

  • Algebra -

    yes the 9w+7 is in the denominator. so the answer is zero?

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