The number that should be multiplied with (3√81−3√9+1) to make it rational is

The number that should be multiplied with (3√81−3√9+1) to make i

1.	The number that should be multiplied with (3√81−3√9+1) to make it rational is
Answer» The number that should be multiplied with $(\sqrt[3]{81} - \sqrt[3]{9} + 1)$ to make it rational is