Lana's Nasty Challenge - Link

$$x = \frac-4 \pm \sqrt(4)^2 - 4(1)(4)2(1)$$

Lana has set up an obstacle course that's designed to test your physical and mental toughness. It's a grueling series of challenges that will push you to your limits, and beyond. Here are the details: lana's nasty challenge

So, $$x = -2$$.

: Start solving the challenge step by step. For mathematical problems, make sure to show your work and check each step. For puzzles or brain teasers, think creatively. $$x = \frac-4 \pm \sqrt(4)^2 - 4(1)(4)2(1)$$ Lana