smhmads
smhmads smhmads
  • 07-02-2017
  • Mathematics
contestada

f(x)=x^2-x-12, find f(x)=-12

*problem b

fxx2x12 find fx12 problem b class=

Respuesta :

baseballboyg
baseballboyg baseballboyg
  • 07-02-2017
Plug in -12 for [tex]f(x)[/tex]!

[tex]-12=x^{2}-x-12[/tex]

Now get the left side equal to zero so you can factor:

[tex]0=x^{2}-x[/tex]

Now you can factor out an [tex]x[/tex]!

[tex]0=x(x-1)[/tex]

So for that to equal zero, [tex]x=0[/tex] or [tex]x=1[/tex]!

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