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## Homework Statement

## Homework Equations

[tex]\int[/tex][tex]\stackrel{\infty}{-\infty}[/tex](x/x_0)e

^{-2|x|/x_0}

*dx*

where x_o is a constant

## The Attempt at a Solution

I was wondering how to write the lower part of the integral. What I have is

[tex]\int[/tex][tex]\stackrel{0}{-\infty}[/tex](x/x_0)e

^{2x/x_0}

*dx*+[tex]\int[/tex][tex]\stackrel{\infty}{0}[/tex](x/x_0)e

^{-2x/x_0}

*dx*

Is that right or should I keep the negative in front of the 2 in the lower integral?