zdwilliams1534 zdwilliams1534
  • 04-05-2018
  • Mathematics
contestada

Simplify the rational expression. state any excluded values. 4x - 4/ x - 1

Respuesta :

danielmaduroh
danielmaduroh danielmaduroh
  • 10-05-2018
We need to simplify this expression:

[tex] \frac{4x-4}{x-1} [/tex]

So, we will call this expression as:
[tex] f(x) = \frac{4x-4}{x-1} [/tex]

We can write this equation like this:

[tex]f(x) = \frac{4(x-1)}{(x-1)} [/tex]

So, if we simplify it, this can be written like this:

f(x) = 4 but given that the denominator can't be zero, then:
[tex] x-1 \neq 0 [/tex] ∴ [tex]x \neq 1[/tex] 

Therefore:
f(x) = 4 if and only if [tex]x \neq 1[/tex] 
Answer Link
LiyaTaylor
LiyaTaylor LiyaTaylor
  • 14-01-2022

Answer:

1 and 4 i believe

Step-by-step explanation:

Answer Link

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