ashley16nordgren ashley16nordgren
  • 19-03-2021
  • Mathematics
contestada

Which shows the factored form of x2 – 12x – 45?

Respuesta :

ezioassasin55
ezioassasin55 ezioassasin55
  • 19-03-2021

Answer:

(x - 15) ( x + 3)

Step-by-step explanation:

x² - 12x - 45

= x² - (15 - 3)x - 45

= x² - 15x + 3x - 45

= x(x - 15) + 3(x - 15)

= (x - 15) ( x + 3)

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