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Identify the expression above the fraction bar.

Mathematics

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Step-by-step solution

2 steps

In a fraction, the numerator is the expression above the fraction bar, and the denominator is the expression below the fraction bar.

  1. Identify the expression above the fraction bar.

    The expression above the fraction bar is z+9z+9. This is the numerator.

  2. Identify the expression below the fraction bar.

    The expression below the fraction bar is z−2z-2. This is the denominator.

    The numerator is z+9\boxed{z+9}, and the denominator is z−2\boxed{z-2}.

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