annie4991 annie4991
  • 01-11-2020
  • Mathematics
contestada

Can someone please help I can’t understanddd.

Can someone please help I cant understanddd class=

Respuesta :

Alfpfeu
Alfpfeu Alfpfeu
  • 01-11-2020

Hello,

Dividing by 0 is not defined so let s take x different from 4 and -4 and then we can write:

As

[tex]f(x)=x^2-7x+12=x^2-4x-3x+12=x(x-4)-3(x-4)=(x-4)(x-3)\\ \\(f\times g)(x)=\dfrac{3(x-4)(x-3)}{(x-4)(x+4)}=\dfrac{3x-9}{x+4}[/tex]

Thanks

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