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  • 14-10-2021
  • Mathematics
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f(x) = –x^2 + 9x +4
Find f(-8)

I need help understanding this problem

fx x2 9x 4 Find f8 I need help understanding this problem class=

Respuesta :

DᴀʀᴋPᴀʀᴀᴅᴏx
DᴀʀᴋPᴀʀᴀᴅᴏx DᴀʀᴋPᴀʀᴀᴅᴏx
  • 14-10-2021

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

let's find f(-8) :

  • [tex] - {x}^{2} + 9x + 4[/tex]

  • [tex] - ( - 8) {}^{2} + (9 \times ( - 8)) + 4[/tex]

  • [tex] - 64 - 72 + 4[/tex]

  • [tex] - 136 + 4[/tex]

  • [tex] - 132[/tex]
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