Respuesta :

The given trinomial can be factored using the factorization method.

x²  - 15x + 56
= x² -7x - 8x + 56
= x(x-7) - 8(x-7)
= (x-7)(x-8)

Thus, (x-8)(x-7) is the factored form of the polynomial.

So the correct answer is option D