Question Write a recursive sequence that represents the sequence defined by the following explicit formula: \[ a_{n}=7\left(3 x^{2}\right)^{n-1} \] Answer Attempt 2 out of 2 \[ \begin{array}{l} a_{1}=7 \\ a_{n}=7\left(3 x^{2}\right) a_{n-1} \end{array} \] Submit Answer \( a_{n-1} \)