Simplify each polynomial.

1. 6g + 8k – 9g + 2k . a. 3g + 10k b. –3g + 10k c. 17gk d. 10k –3

2. –4x + 6x2 + 5x. a. 7x3 b. 6x2 + 9x c. 6x2 – 9x d. 6x2 + x

3. a2 + 5a – 3a2. a. 5a + 2a2 b. –2a2 + 5a c. –3a2 + 6a d. 5a – 3a2

4. 3x2 + 8x + 7x. a. 3x2 + 15x b. 18x3 c. 3x2 + 1 d. 3x2 – x

5. find the degree of –5w3 – 4w2 + 7w + 16. a. –5 b. 16 c. 14 d. 3

i already have my answer for number 1, which is b