## College Algebra (6th Edition)

3$x^{2}$ - 25x - 28 = 3$x^{2}$ + 3x - 28x - 28 = 3x(x + 1)-28(x + 1) =(x + 1)(3x - 28) 3$x^{2}$ - 25x - 28 is a composite polynomial (x + 1) and (3x - 28) are prime polynomials