SOLUTION: can u show me how to do this problem? (2x^2+5xy+4y^2)+(-xy-6x^2+2y^2)

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Question 53834: can u show me how to do this problem? (2x^2+5xy+4y^2)+(-xy-6x^2+2y^2)
Found 2 solutions by checkley71, AnlytcPhil:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
2X^2+5XY+4Y^2 PLUS
-6X^2-XY+2Y^2
----------------------------
-4X^2+4XY+6Y^2

Answer by AnlytcPhil(1806) About Me  (Show Source):
You can put this solution on YOUR website!

  (2x² + 5xy + 4y²) + (-xy - 6x² + 2y²)

Try putting the second one under the first one, like
this:

   (2x² + 5xy + 4y²)
 + (-xy - 6x² + 2y²)
---------------------

No, that won't do.  We'll have to swap the first two 
terms of the second one so like terms will be in line 
vertically.  Now we can add them:

   ( 2x² + 5xy + 4y²)
 + (-6x² -  xy + 2y²)
---------------------
    -4x² + 4xy + 6y²

Edwin McCravy