If a-3=3_{2/3}+3_{1/3},find the value of a^{3}-9a^{2}+18a

# Steps

- First find the value of a.
- Put a into the quadratic equation.
- Solve

# Answer

Do step 1 by taking 3 to the other side and simplifying for a. For example: a= 3_{2/3} + 3_{1/3 }+3. This gives us: a=10.

Do step 2 by putting the value of a into the second equation. This gives us:10^{3 }+9(10^{2})+ 18(10)

Then solve the answer will be 1000+900+180 which gives 2080