simplify the radical expression. state any excluded values.
(4x-4)/x-1
A) x
B) 4; where x does not equal 4
C) 0
D) 4; where x does not equal 1
D) 4; where x does not equal 1
To simplify, we need to factor out a common factor of 4 from the numerator:
(4x-4)/x-1 = 4(x-1)/x-1
Then we can cancel out the common factor of x-1:
4(x-1)/x-1 = 4
The simplified expression is 4, but we need to note that x cannot equal 1, since that would make the original expression undefined (division by zero).