anonymous
  • anonymous
simplify the expression.(9m^2-m+3)-(2m^2-4m-1).....2m+2..........7m^2+3m+4..........7m^2-4m-2 or 7m^2 -5m+2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Start by distributing the negative sign on the second parentheses. Then remove the parens and combine like terms.
anonymous
  • anonymous
Well, the main idea here is to open the parentheses. When opening the parentheses of the second term (2m^2-4m-1), you should multiply each term by -1. After that, you have to add the like terms.
anonymous
  • anonymous
ok

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anonymous
  • anonymous
Let us know what you got and we can check your answer
anonymous
  • anonymous
7m^2-5m+2???
anonymous
  • anonymous
No. You forgot to distribute the - to all the terms in the second paren.. \(-(2m^2 - 4m-1) = -2m^2 + 4m + 1\)
anonymous
  • anonymous
You multiply -1 by each term.
anonymous
  • anonymous
oh ok
anonymous
  • anonymous
7m^2+3m+4??
anonymous
  • anonymous
Yes.
anonymous
  • anonymous
thnks

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