smozz267oxetua smozz267oxetua
  • 02-02-2018
  • Mathematics
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ANSWER ASAPPPP PLEASEEEE

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TannerTheMathTeacher TannerTheMathTeacher
  • 02-02-2018
Hello!
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To add polynomials, combine like terms. Don't add exponents.

[tex](2mn + 4n^{2} ) + (5 {m}^{2} - 7mn)[/tex]

Remove the parenthesis and combine like terms.

[tex]4n^{2} + 5 {m}^{2} - 5mn[/tex]
Rewrite in Standard Form:

[tex]5m^{2} - 5mn + 4 {n}^{2} [/tex]


So the answer is C.
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