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  • 10-04-2017
  • Mathematics
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need help fast pleeze

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irspow
irspow irspow
  • 10-04-2017
It is addition/subtraction.  What is it that you do not understand?

With variables you can only add/subtract like terms, meaning terms that have the same variables with the same exponents....(often called grouping like terms)

In this case:

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


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