Square of (a + 8a) + 22 (a + 8a) + 120 factorization

Square of (a + 8a) + 22 (a + 8a) + 120 factorization


(a^2+8a)^2+22(a^2+8a)+120
=[(a^2+8a)+10][(a^2+8a)+12]
=(a^2+8a+10)(a+2)(a+6)