Выполни умножение

1. \(\dfrac{mn^3}{24p}\cdot \Big(-\dfrac{6p}{m^2n}\Big)=\)
   [ \(-\frac {n^2}{4m}\) | \(\frac {n^2}{4m}\) | \(-\frac {m^3n^2}{4m}\) ]
2. \(20m^6\cdot \dfrac{3x^3}{5m^9}=\)
   [ \(\frac {12x^3}{m^3}\) | \(\frac {4x^3}{m^3}\) | \(\frac {60x^3}{5m^3}\) ]
3. \(\dfrac{x^{4n+1}y^{n+10}}{z^{n+2}}\cdot \dfrac{z^{n+4}}{x^{3n+1}y^n}=\)
   [ \(\frac{x^ny^{10}}{z^2}\) | \(x^{n+2}y^{10}z^6\) | \(x^ny^{10}z^2\) ]