The question 2788206: How to find all $x\in\mathbb R$ such that $x^3 + 5x^2 = -6x$ is closed as duplicate with the duplicate target deleted (which is not optimal). The OP shown at least very basic effort by plugging some values - but that's probably all regarding context. Is it enough to keep the question? Or should it be simply deleted?
I fixed the minor notation problem that rendered this completely baffling to everybody. Not sure if this is worthy of reopening now: math.stackexchange.com/questions/2818387/i
@RobertFrost You must think it is worthy of undeleting and reopening, given your votes. Why "ask" us what others think when you've already made up your mind?