9000063806 Level: BConsider the sequence \(a_{n+1} = a_{n} - 2a_{n-1}\) with \(a_{3} = 0\) and \(a_{4} = -16\). Find \(a_{2} - a_{1}\).\(4\)\(16\)\(- 4\)\(8\)
9000063805 Level: AConsider sequence \(a_{n+1} = 2a_{n} - a_{n-1}\) with \(a_{1} = 3\) and \(a_{2} = 5\). Find \(a_{3} + a_{4}\).\(16\)\(12\)\(0\)\(- 2\)