lachole778 lachole778
  • 13-06-2019
  • Mathematics
contestada

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f + g)(x).

Respuesta :

gmany
gmany gmany
  • 15-06-2019

Answer:

[tex]\large\boxed{(f+g)(x)=5x+3}[/tex]

Step-by-step explanation:

[tex](f+g)(x)=f(x)+g(x)\\\\f(x)=2x-6,\ g(x)=3x+9\\\\\text{Substitute:}\\\\(f+g)(x)=(2x-6)+(3x+9)\\\\=2x-6+3x+9\qquad\text{combine like terms}\\\\=(2x+3x)+(-6+9)\\\\=5x+3[/tex]

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mmayra8589 mmayra8589
  • 21-10-2020

Answer:

(f-g)(x)= -x-15

Step-by-step explanation:

just did it on apex test

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