## College Algebra (11th Edition)

We know that (a + b)(a - b) = $a^{2}$ - $b^{2}$, so we take the square root of each term in the polynomial to get a and b. We get (p - 2q) and 10, so the factorization is ((p - 2q) + 10)((p - 2q) - 10) = (p - 2q + 10)(p - 2q - 10)