Daniela and Ella were each asked to perform the following operation:
>$\dfrac{6z-15}{10z(z-1)}\div\dfrac{-5z+5}{3z^2}$
Their responses are shown below.
**Daniela** ||| **Ella**
:-:|:-:|:-:|:-:
$-\dfrac{9z(2z-5)}{50(z-1)^2}$ ||| $-\dfrac{(2z-5)}{2z^3}$
**Are either of these students correct?**
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