$\begin{array}{c}{x}^9\cdot (2x{)}^3=\\ \\ x^9\cdot 2^3\cdot x^3=8\cdot x^{12}\end{array}\backslash def\backslash arraystretch\{1.25\}\; \backslash begin\{array\}\{l\}x⁹\backslash cdot(2x)³=\backslash \backslash \backslash \backslash x⁹\backslash cdot2³\backslash cdot\; x³=8\backslash cdot\; x¹²\backslash end\{array\}$

Die gesuchten Zahlen lauten 9 und 8.