Answer
$x^{\frac{2}{7}}(x^{\frac{1}{7}}-2)$
Work Step by Step
$x^{\frac{3}{7}}-2x^{\frac{2}{7}}=x^{\frac{2}{7}}(x^{\frac{1}{7}})-x^{\frac{2}{7}}(2)=x^{\frac{2}{7}}(x^{\frac{1}{7}}-2)$
In this problem, we make use of the product rule, which holds that $a^{m}\times a^{n}=a^{m+n}$.
