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How do I simplify 6x^2 + y - x^2 + 5 + x - 3y^2

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cloversmith | Student, Grade 11 | eNotes Newbie

Posted June 30, 2009 at 7:14 AM via web

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How do I simplify 6x^2 + y - x^2 + 5 + x - 3y^2

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cburr | Middle School Teacher | (Level 2) Associate Educator

Posted June 30, 2009 at 9:53 AM (Answer #1)

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This can't be simplified much.  The only like terms are the two terms with x^2.

6x^2 + y - x^2 + 5 + x - 3y^2

So, you can simplify to 5x^2 + y + 5 + x - 3y^2, but I don't see how you can simplify it any further.

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neela | High School Teacher | Valedictorian

Posted June 30, 2009 at 9:55 AM (Answer #2)

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6x^2 + y - x^2 + 5 + x - 3y^2.

To simplify the above:

There are 6 terms, separated by  a  + or - signs.

Group like terms along with their signs:

6x^2-x^2 + x + y-3y^2 + 5          (1)

Now 6x^2-x^2=5x^2. Replace accordingly.

5x^2+x -3y^2+y + 5. This is simlified form.

For the sake of order, but not necessary,  the x's and y's are kept  in  a descending order and then constant term.

 

 

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