Select the correct answer. One factor of the polynomial 3x^3 + 20x^2- 21x+88 is (X + 8). What is the other factor of the polynomials

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120