Factor 3x^3-15x^2-98x-112
a little synthetic division on low-hanging fruit reveals
(x+2)(3x^2-21x-56)
since the discriminant (4452) is not a perfect square, there are no other factors with rational coefficients.
(x+2)(3x^2-21x-56)
since the discriminant (4452) is not a perfect square, there are no other factors with rational coefficients.