Laws of Index 6

\(\left({x}^{5}{y}^{2}{z}^{-5}{w}^{4}\right)\left({x}^{2}y{z}^{-3}w\right)=\left(1\right)\left(1\right){x}^{5+2}{y}^{2+1}{z}^{-5-3}{w}^{4+1}={x}^{7}{y}^{3}{z}^{-8}{w}^{5}\)