Completely factor the following expression:
(6a^3 + 92a^2 - 7) - (-7a^3 + 5a^2 - 7)
(6a^3 + 92a^2 - 7) - (-7a^3 + 5a^2 - 7) simplify as
13a^3 + 87a^2 =
a^2 ( 13a + 87)
