deloreswall09 deloreswall09
  • 10-08-2020
  • Mathematics
contestada

Find the value of f (x)=x²-4 and g(x)=3x+2 Find the value of f (-1)g(-1)

Respuesta :

xKelvin
xKelvin xKelvin
  • 10-08-2020

Answer:

3

Step-by-step explanation:

[tex]f(-1)g(-1) \text{ is the same thing as } f(-1)\cdot g(-1). \\\text{Therefore, find f(-1) and g(-1)}[/tex]

[tex]f(-1)=(-1)^2-4\\f(-1)=1-4\\f(-1)=-3[/tex]

[tex]g(-1)=3(-1)+2\\g(-1)=-3+2\\g(-1)=-1[/tex]

Therefore:

[tex]f(-1)\cdot g(-1)\\=(-3)(-1)=3[/tex]

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