helenawayj helenawayj
  • 23-05-2021
  • Mathematics
contestada

Fin the sum or difference of the polynomial (9x2 +3x+2)+(3x2 –5x-3) write your answer in descending order

Please explain so I can do the rest myself help

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jessicajacob25 jessicajacob25
  • 23-05-2021
Combine your like terms:

9x^2 + 3x^2 = 12x^2
3x + -5x = -2x
2 + -3 = -1
12x^2 - 2x - 1
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