QuestionUse the dropdown menu to indicate the justification of the previous step to the current step when solving the equation: $$5+2 d^{\frac{3}{2}}=21$$ \begin{tabular}{|c|c|} \hline Statement & Justification \\ \hline $$1.5+2 d^{\frac{3}{2}}=21$$ & 1. Given \\ \hline $$\text { 2. } 2 d^{\frac{3}{2}}=16$$ & 2. \$ \\ \hline $\text { 3. } d_{2}^{-2}=8$ & 3. \ \\ \hline 4. d=4$ & 4. \\ \hline \end{tabular}