Question

Simplify the rational expression. State any excluded values.

4x – 4 over x – 1
A. x
B. 4; where xdoes not equal4
C. 0
D. 4; where xdoes not equal1

Answer 1

D. 4; where x does not equal 1

Excluded value: x = 1, because it would make the denominator 0, which is not allowed in a fraction.