1+x x+1
5. Is the rational expression in simplest form?
UFO
A. Yes, because the numerator and the denominator are in simplest form of a
polynomial expression.
B. Yes, because the numerator and the denominator are both polynomial
expression.
C. No, because negative one can still be factored from either the numerator
or the denominator.
D. No, because the numerator and the denominator can still be divide out​