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

\nthroot{18}{7^{8}} \cdot \nthroot{9}{7^{4}}

\nthroot{9}{x^{6}} \cdot \nthroot{7}{x^{9}}

\nthroot{3}{3^{6}} \cdot \nthroot{4}{3^{10}}

\nthroot{5}{7^{7}} \cdot \nthroot{3}{7^{2}}

\nthroot{19}{7^{4}} \cdot \nthroot{3}{7^{9}}

\nthroot{12}{x^{4}} \cdot \nthroot{7}{x^{6}}

\nthroot{7}{3^{2}} \cdot \nthroot{9}{3^{10}}

\nthroot{9}{7^{10}} \cdot \nthroot{10}{7^{6}}

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

\nthroot{10}{x^{8}} \cdot \nthroot{4}{x^{9}}

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

\nthroot{20}{3^{8}} \cdot \nthroot{6}{3^{3}}

\nthroot{7}{7^{4}} \cdot \nthroot{8}{7^{3}}

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

\nthroot{17}{7^{7}} \cdot \nthroot{7}{7^{9}}

\nthroot{12}{7^{7}} \cdot \nthroot{10}{7^{9}}

\nthroot{9}{x^{6}} \cdot \nthroot{5}{x^{10}}

\nthroot{15}{x^{3}} \cdot \nthroot{10}{x^{7}}

\nthroot{19}{3^{5}} \cdot \nthroot{4}{3^{2}}

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

\nthroot{10}{7^{7}} \cdot \nthroot{5}{7^{3}}

\nthroot{18}{x^{9}} \cdot \nthroot{10}{x^{9}}

\nthroot{9}{7^{2}} \cdot \nthroot{3}{7^{6}}