Intermediate Algebra for College Students (7th Edition)

The statement makes no sense because $2x^2-7x+6$ is not prime. $2x^2-7x+6$ can be factorized as: $2x^2-7x+6=2x^2-4x-3x+6=2x(x-2)-3(x-2)=(x-2)(2x-3).$ So the full factorization is: $10x(x-2)(2x-3)$.