algebra

The expression can be factored as (x2 + 4)(x + 8). This is because we can factor the expression into two binomials, each of which is a factor of the original polynomial. The first binomial, x2 + 4, comes from taking the greatest common factor of both terms and subtracting it from each term, leaving a binomial. The second binomial, x + 8, comes from completing the square in the first binomial. The two binomials, when multiplied, equal the original polynomial.