Question

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

Answer 1

1 and 4 i believe

Explanation:

Answer 2

We need to simplify this expression:


`(4x-4)/(x-1)`

So, we will call this expression as:

`f(x) = (4x-4)/(x-1)`

We can write this equation like this:


`f(x) = (4(x-1))/((x-1))`

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

f(x) = 4 but given that the denominator can't be zero, then:

`x-1 \\eq 0` ∴
`x \\eq 1`

Therefore:
f(x) = 4 if and only if
`x \\eq 1`