# Thread: Factoring a cubic function

1. ## Factoring a cubic function

Hi,

I hope someone can help. I'm trying to factor a cubic function, but it appears that I'm doing incorrectly based on my textbook's answer. I attached my steps in this post, along with also the textbook answer. Please let me know where I went wrong in my steps.

Sincerely,
Olivia

My steps:

2. ## Re: Factoring a cubic function

You have what is probably a typo in the second line: you should have
$\frac{1}{8^3}(x^3)^3- 8^3$.

That "81" is clearly incorrect. Your solution is correct.

3. ## Re: Factoring a cubic function

note $8^2 \ne 81$