The provided text doesn't appear to be a syntax-correct or...

The provided text doesn't appear to be a syntax-correct or complete segment of any programming or scripting language code. However, if it were interpreting a math-related process, it looks like an expression:

36u^2 - 64

This appears to be a mathematical function or algebraic expression, and the goal here might be to "factor completely." Factoring completely means breaking down the expression into its simplest multiplicative components.

Explanation of what this does mathematically:

1. Take the expression 36u^2 - 64.
2. Recognize that this is a difference of squares:
   ( a^2 - b^2 = (a - b)(a + b) ).
3. Here, ( 36u^2 ) corresponds to ( (6u)^2 ), and ( 64 ) corresponds to ( 8^2 ). So:
   ( 36u^2 - 64 = (6u - 8)(6u + 8) ).
4. Additionally, this can be factored further:
   Factor out the greatest common factor (GCF) of ( 6 ) from each term:
   ( (6u - 8)(6u + 8) = 4(3u - 4)(3u + 4) ).

So the complete factorization is:

4(3u - 4)(3u + 4)

Without more information, this explains the factoring process that such a representation might aim to achieve.