\nthroot{8}{7^{9}} \cdot \nthroot{9}{7^{4}}

\nthroot{13}{x^{3}} \cdot \nthroot{7}{x^{9}}

\nthroot{4}{7^{6}} \cdot \nthroot{6}{7^{7}}

\nthroot{13}{7^{3}} \cdot \nthroot{9}{7^{10}}

\nthroot{9}{3^{8}} \cdot \nthroot{10}{3^{7}}

\nthroot{13}{x^{2}} \cdot \nthroot{6}{x^{10}}

\nthroot{18}{3^{9}} \cdot \nthroot{3}{3^{8}}

\nthroot{19}{x^{3}} \cdot \nthroot{9}{x^{8}}

\nthroot{5}{3^{4}} \cdot \nthroot{9}{3^{8}}

\nthroot{20}{3^{5}} \cdot \nthroot{6}{3^{4}}

\nthroot{3}{3^{2}} \cdot \nthroot{5}{3^{2}}

\nthroot{5}{7^{4}} \cdot \nthroot{4}{7^{8}}

\nthroot{14}{x^{10}} \cdot \nthroot{10}{x^{2}}

\nthroot{6}{7^{2}} \cdot \nthroot{5}{7^{8}}

\nthroot{3}{3^{2}} \cdot \nthroot{3}{3^{9}}

\nthroot{6}{3^{9}} \cdot \nthroot{9}{3^{4}}

\nthroot{9}{7^{8}} \cdot \nthroot{7}{7^{10}}

\nthroot{7}{7^{3}} \cdot \nthroot{6}{7^{4}}

\nthroot{7}{x^{6}} \cdot \nthroot{8}{x^{6}}

\nthroot{13}{7^{2}} \cdot \nthroot{7}{7^{4}}

\nthroot{8}{x^{6}} \cdot \nthroot{6}{x^{7}}

\nthroot{10}{x^{3}} \cdot \nthroot{5}{x^{10}}

\nthroot{14}{3^{9}} \cdot \nthroot{3}{3^{4}}

\nthroot{10}{7^{5}} \cdot \nthroot{10}{7^{9}}