IMathAS-libretexts

Given the function

\displaystyle {f{{\left({r}\right)}}}={3}{r}^{{8}}{\left({r}-{4}\right)}^{{4}}

,

its roots are

and their multipicities are .

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Enter your answer as a list of integer or decimal numbers separated with commas: Examples: -4, 3, 2.5172
Enter DNE for Does Not Exist, oo for Infinity

Enter your answer as a list of integer or decimal numbers separated with commas: Examples: -4, 3, 2.5172
Enter DNE for Does Not Exist, oo for Infinity