Badlandguard29go Badlandguard29go Math Answered B. Add/Subtract the following polynomials. 1. 3a2 – 2a2 2. 3a2 + a + 5a 3. 18m + 16m + (-12m) 4. (18m – 16) – (11m – 12) 5. (6x2 – 7x + 1) – (-2x2 – x – 1)