Simplify the following expression: (12a2 - 7a + 4) + (3a2 + 8a - 10) Simplify the following expression: (9p2 - 5p + 1) - (2p2 -6) Simplify the following expression: Simplify the following expression: Simplify the following expression: (4a365) 2 Simplify the following expression: (-9r4$5) (4rs7) Simplify the following expression: 3k (12 - 7k + 13Simplify the following expression: (m + 6) (m + 12) Simplify the following expression: (v - 9) (9v - 5) Simplify the following expression: (4c - 11) (3c - 8) Simplify the following expression: (n - 6) (n2 - 5n + 4) Simplify the following expression: (2x - 15y) (5x + 7y)Simplify the following expression: (7p - 5) (7p + 5) Simplify the following expression: (9v - 2)2 Simplify the following expression: 38 310 Simplify the following expression: mm 6 O