qqp question1: How is [math]x = \frac{1}{2}[/math] if [math]x (1 - x ^ 2) = \frac{3}{8}[/math]? question2: Is [math]x ^ {\left(\frac{6}{2}\right)} = x ^ 3[/math] or is [math]x ^ {\left(\frac{6}{2}\right)} = \sqrt{x ^ 6}[/math]?