Factoring polynomials using the box method to factor x² + 6x + 8 into (x + 2)(x + 4).
A diagram illustrating the factoring of the polynomial x² + 6x + 8 using a box method, showing factors (x + 2) and (x + 4), with highlighted pairs of numbers (2 × 4) and (2 + 4) for multiplication and addition.