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Like Terms

Posted on 2012-03-11
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I have some expressions, but I don't know which one has like terms.
 The expressions I found are:
- x+y+xy
- 17x to the power 2 + x to the power 3 + x
- 7y to the power 2 - 7y -7
- x to the power 4 + 15+ 4x to the power 4
                                                                         Which one has like terms? Please help.
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Question by:naseeam
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I think the answer is the last one, which is x^4+ 15 +4x^4.

Am I right?
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by:naseeam
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Yay! (:
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