Math Problem Solver

$${\left( 8 {x}^{6} {y}^{-15} {z}^{3} \right)}^{\frac{2}{3}} {\left( 49 {x}^{-2} {y}^{8} {x}^{2} \right)}^{\frac{-1}{2}} = \frac{4 \left(\frac{x^{6} z^{3}}{y^{15}}\right)^{\frac{2}{3}}}{7 \sqrt{y^{8}}}$$

If the variables $x$, $y$, $z$ are real, then: $$\frac{4 \left(\frac{x^{6} z^{3}}{y^{15}}\right)^{\frac{2}{3}}}{7 \sqrt{y^{8}}} = \frac{4 \left(\frac{x^{6} z^{3}}{y^{15}}\right)^{\frac{2}{3}}}{7 \left|{y^{4}}\right|}$$