anonymous
  • anonymous
i am confused on polynomials: (x^2y+−2x^2y) =-x^2y (the correct answer) x^2-2x^2 = -x, y+y = 2y....am i suppose to add the y's?
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
yes they have the same variables (like terms)
anonymous
  • anonymous
the answer only has one y
anonymous
  • anonymous
so apparently, you don't do anything to the y's. can someone explain why?

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Vocaloid
  • Vocaloid
the y's are part of the exponent, so you leave them alone
Vocaloid
  • Vocaloid
think of it this way: 1 - 2 = -1 (x^2y) - 2(x^2y) = -(x^2y)

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