sweetnessss sweetnessss
  • 19-06-2017
  • Mathematics
contestada

Subtract: (−2x2 + 9x − 3) − (7x2 − 4x + 2)
−9x2 − 13x + 5
−9x2 + 13x − 5
5x2 − 13x − 1
5x2 + 5x − 5

Respuesta :

meloan2211 meloan2211
  • 19-06-2017
-23 + 13x
working:
(-2 x 2 + 9x - 3) - (7 x 2 - 4x + 2)
= (-4 + 9x -3) - (14 - 4x + 2)
= -7 + 9x - 16 + 4x
= -23 + 13x
-13 - 13x
9 - 13x
5x - 5
Answer Link
acelaotero16 acelaotero16
  • 19-06-2017
The anwser is B, -9x2+13x-5.

Hope it helped
Answer Link

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