nekumaker2
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13.) 13y² + 9y + 4y² - 31y
14.) 10m²n + 7mn² - m²n
15.) Find the sum of 16y² and -5y²
16.) Find the difference of 10x²y and 2x²y

I will give brainliest

Respuesta :

mhanifa

Answer:

Collect like terms to simplify:

13)

  • 13y² + 9y + 4y² - 31y =
  • (13 + 4)y² + (9 - 31)y =
  • 17y² - 22y

14)

  • 10m²n + 7mn² - m²n =
  • (10 - 1)m²n + 7mn² =
  • 9m²n + 7mn²

15)

  • 16y² +( -5y²) =
  • (16 - 5)y² =
  • 11y²

16)

  • 10x²y - 2x²y =
  • (10 - 2)x²y =
  • 8x²y

#13

[tex]\\ \rm\longmapsto 13y^2+9y+4y^2-31y[/tex]

[tex]\\ \rm\longmapsto 13y^2+4y^2+9y-31y[/tex]

[tex]\\ \rm\longmapsto 17y^2-22y[/tex]

#14

[tex]\\ \rm\longmapsto 10m^2n+7mn^2-m^2n[/tex]

[tex]\\ \rm\longmapsto 10m^2n-m^2n+7mn^2[/tex]

[tex]\\ \rm\longmapsto 9m^2n+7mn^2[/tex]

#15

[tex]\\ \rm\longmapsto 16y^2-5y^2[/tex]

[tex]\\ \rm\longmapsto 11y^2[/tex]

#16

[tex]\\ \rm\longmapsto 10x^2y-2x^2y[/tex]

[tex]\\ \rm\longmapsto 8x^2y[/tex]

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