lauren813 lauren813
  • 13-03-2019
  • Mathematics
contestada

if M= 5x squared+7x-4 and N= -3x squared - 4x + 5, M-N equals

Respuesta :

jimrgrant1 jimrgrant1
  • 13-03-2019

Answer:

8x² + 11x - 9

Step-by-step explanation:

M - N = 5x² + 7x - 4 - (- 3x² - 4x + 5)

         = 5x² + 7x - 4 + 3x² + 4x - 5 ← collect like terms

         = 8x² + 11x - 9

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