Expression Analysis:
- The given expression is 2x + 4y - 8z - 5h + 7f - 56.
- It consists of variables x, y, z, h, and f, along with constants.

Understanding the Terms:
- The expression is a combination of terms involving different variables and constants.
- Each term is separated by a mathematical operation, either addition or subtraction.

Coefficients and Variables:
- Coefficients refer to the numerical values that multiply the variables in each term.
- In this expression, the coefficients are 2, 4, -8, -5, and 7 for the variables x, y, z, h, and f respectively.

Constants:
- The constant term in the expression is -56, which does not have any variable attached to it.
- Constant terms are standalone numerical values in an expression.

Overall Value:
- By simplifying the expression, we can evaluate the overall value based on the given coefficients and constants.
- The expression can be calculated or manipulated further based on specific values assigned to the variables x, y, z, h, and f.

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