Seudónimo Seudónimo
  • 15-05-2017
  • Mathematics
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Subtract: (3m2 + 2n) – (m2 + 2n)

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Аноним Аноним
  • 15-05-2017
the negative in front of the second bracket means that it's times by -1 so each of their signs switches: 
3m^2+2n-m^2-2n 
Add like terms 
2m^2 
the 2n cancels out 
Answer Link
brandyy956
brandyy956 brandyy956
  • 15-05-2017
the answer should be2m^2
Answer Link

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