The expression you provided is:

\[
-2|x^2 - 15| - 4
\]

This can be simplified step by step. However, before proceeding with the solution, I'll break it down into parts:

1. \(|x^2 - 15|\) represents the absolute value of the expression \(x^2 - 15\). The absolute value makes the expression non-negative regardless of the value of \(x\).

2. The multiplication by \(-2\) outside the absolute value flips the sign of whatever is inside.

3. Finally, subtract 4 from the result.

Are you asking for a solution where you simplify or analyze this expression further (e.g., for specific values of \(x\))? Or are you looking for a graph or additional steps?

### Questions to expand:
1. Do you want to evaluate this expression for specific values of \(x\)?
2. Should I solve this expression for when it equals 0 or another constant?
3. Are you interested in understanding how the absolute value affects the behavior of the function?
4. Would you like a graph of this function to visualize its properties?
5. Do you want to know how the expression behaves as \(x\) approaches large positive or negative values?

### Tip:
When working with absolute value functions, remember that they create a "V" shape in graphs, as they change the sign of any negative values inside.

Learn how to analyze and simplify the expression -2|x² - 15| - 4. This problem covers key algebraic concepts such as absolute value, quadratic expressions, and function behavior. Suitable for students in Grades 9-11.

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