bunnbun bunnbun 24-04-2024 Mathematics Answered Subtract (13a2 + a + 1) – (4a2 – 5a – 6). A) 17a2 – 5a – 4 B) 9a2 + 6a + 7 C) –9a2 + 4a – 3 D) –9a2 + 6a – 5