lorry804
lorry804 lorry804
  • 21-02-2018
  • Mathematics
contestada

Find f(-5) if f(n) = n3 + 3n2
A) -50
B) -7
C) 0
D) 22

Respuesta :

Аноним Аноним
  • 21-02-2018
[tex] f(-5) = (-5)^{3} + 3(-5)^{2}[/tex]
[tex]f(-5) = -125 + 3(25)[/tex]
[tex]f(-5) = -125 + 75[/tex]
[tex]= -50[/tex]
Answer Link
helpmetnx helpmetnx
  • 21-02-2018
f(n) = n^3 + 3n^2
​substitute the f(-5)
​f(-5) = (-5)^3 + 3(-5)^2
solve 
f(-5) = -125 + 75
f(-5) = -50

​That is the solution
​A.) -50

​Hope this helps :)
Answer Link

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