The polynomial P(x)=x^3−6x^2+6x−23 can be rewritten as P(x)=(x^2+6)(x−6)+13.
Which expression is a factor of P(x)?
a. x^2+6
b. x−6
c. 13
d. none of these
please help
If x^2+6 would be a factor, there would be no remainder
if x-6 were a factor, there would be no remainder
clearly 13 cannot be a factor, that is just plain silly
so ....