Posted by **Shreya** on Wednesday, January 18, 2012 at 11:25pm.

|2x-3|-|2x+5| = 0 i please need helps with this.

- algebra -
**drwls**, Thursday, January 19, 2012 at 12:36am
This is not a calculus question. It is algebra.

There will only be an answer in this case when -5 < x < 3. You can convince yourself of that graphically. You have two V-shaped functions touching the x axis at x = -5 and x = 3. They have mutually parallel sides and they only intersect in one place.

In that region between -5 and +3, the equation becomes

3 - 2x - 2x -5 = 0

4x = -2

Therefore,

x = -1/2

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