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?** [[☃ radio 1]]