Respuesta:
[tex]\frac{25x^6y^2}{z^4}[/tex]
Explicación paso a paso:
Hola princesa aqui llego tu principe a salvarte <3 XD
[tex]\left(\frac{45x^9y^7z}{9x^6y^6z^3}\right)^2\\\\\left(5x^9y^7z\cdot x^{-6}y^{-6}z^{-3}\right)^2\\\\\left(5x^3yz^{-2}\right)^2\\\\\left(\frac{5x^3y}{z^2}\right)^2\\\\\frac{5^2x^{3\cdot 2}y^2}{z^{2\cdot 2}}\\\\\frac{25x^6y^2}{z^4}[/tex]
