Question 394297
The rational root theorem states that if a polynomial {{{f(x) = a[n]x^n + a[n-1]x^(n-1)}}} + ... + {{{a[0]}}} has a rational root, then it must be in the form +- a/b, where a is a factor of {{{a[0]}}} and b is a factor of {{{a[n]}}}. So, if +- a/b is a rational root for your given polynomial, it might be -12/3 or 6/1 or whatever...you can try plugging in a few possible rational numbers for yourself.