Question 458820
The phrase "prime number" is reserved only for positive integers, not polynomial expressions. However, if you mean "which expression is a *prime polynomial*" that makes more sense (prime polynomial is a polynomial that cannot be factored into linear factors with integer coefficients).


We can see that a and b factor to (x+1)(x+3) and (x+1)(x+5) respectively. I have to assume you mean x^2 + 6x + 8 for c), which factors to (x+2)(x+4). So the answer is d), none of the above.