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October 4, 2015
Posted by **Celest** on Wednesday, July 31, 2013 at 4:14pm.

- Pre-Algebra -
**DrBob222**, Wednesday, July 31, 2013 at 4:23pm5x^2 + x -2x^2 -3x -1 =

Add (algebraically) the common terms; i.e.,

5x^2-2x^2 = 3x^2

x-3x = -2x and the answer is

3x^2 - 2x - 1.