rodub rodub
  • 19-08-2020
  • Mathematics
contestada

f(x) = 3x2 + 5x – 14 Find f(-9 )​

Respuesta :

ujalakhan18
ujalakhan18 ujalakhan18
  • 19-08-2020

Answer:

[tex]\huge\boxed{f(-9) = 184}[/tex]

Step-by-step explanation:

[tex]f(x) = 3x^2 +5x-14[/tex]

Put x = -9

[tex]f(-9) = 3(-9)^2+5(-9)-14\\f(-9) = 3(81) -45-14\\f(-9) = 243-45-14\\f(-9) = 198-14\\f(-9) = 184[/tex]

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Wolfyy
Wolfyy Wolfyy
  • 22-08-2020

Steps to solve:

f(-9) = 3(-9)^2 + 5(-9) - 1

~Solve using PEMDAS

f(-9) = 3(81) - 45 - 1

f(-9) = 243 - 45 - 1

f(-9) = 198 - 1

f(-9) = 197

Best of Luck!

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