montse38 montse38
  • 06-11-2018
  • Mathematics
contestada

if f(x)= 3x-1/4x+2 find f(x-1/ x+2)

Respuesta :

MrGumby
MrGumby MrGumby
  • 08-11-2018

Answer:

The value of this new equation would be (2x - 5)/6x.

Step-by-step explanation:

In order to find the value of this equation, we need to take the original equation and replace every x with (x - 1/x+2).

f(x)= 3x - 1/4x + 2

f(x)= [3(x - 1/x+2) - 1]/[4(x - 1/x+2) + 2]

f(x) = [(3x - 3/x + 2) - (x + 2/x + 2)]/[(4x - 4/x + 2) + (2x + 4/x + 2)]

f(x) = (2x - 5/x+2)/(6x/x + 2)

f(x) = (2x - 5)/6x

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