Give a quick stream of consciousness before answering the following question. For any numbers w and z, w#z = w^3z(8 - w^2). If both z and w#z are positive numbers, which of the following could be a value of w?
Options:
(A) 9
(B) 3
(C) 0
(D) −2
(E) −9

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Since w#Z and w are positive, we need to take the value of w such that w#z or w^3z(8 - w^2) is positiv
The answer: (E).