Kj100jk Kj100jk
  • 26-02-2021
  • Mathematics
contestada

f(x)=4x^(2)+x-5

Find f(−5)

Respuesta :

clarch19
clarch19 clarch19
  • 26-02-2021

Answer:

90

Step-by-step explanation:

4(-5)² + (-5) + (-5)

4(25) - 10

100 - 10 = 90

Answer Link
xKelvin
xKelvin xKelvin
  • 26-02-2021

Answer:

[tex]f(-5)=90[/tex]

Step-by-step explanation:

We are given the function:

[tex]f(x)=4x^2+x-5[/tex]

In order to find f(-5), substitute -5 for x:

[tex]f(-5)=4(-5)^2+(-5)-5[/tex]

Evaluate:

[tex]f(-5)=4(25)-10=100-10=90[/tex]

Therefore:

[tex]f(-5)=90[/tex]

Answer Link

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