coxcaelin coxcaelin
  • 23-09-2021
  • Mathematics
contestada

Let f(x)=4x2 + 5x
Evaluate f(-5)

Respuesta :

jimrgrant1 jimrgrant1
  • 23-09-2021

Answer:

f(- 5) = 75

Step-by-step explanation:

Substitute x = - 5 into f(x) , that is

f(- 5) = 4(- 5)² + 5(- 5)

       = 4(25) - 25

       = 100 - 25

      = 75

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