Answer
$$\frac{27x^3}{5}-1$$
Work Step by Step
Doing the given transformation, we find:
$$\frac{1}{5}\left(\left(3x\right)^3-5\right) \\ \frac{1}{5}\left(27x^3-5\right) \\ \frac{27x^3}{5}-1$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.