Question

Are the answers for 1-3 correct? I need help with 4 and 5!!! Please!

Answer 1

1.

a. 12d² -6d

b. 6c^5 + 8c^4 -10c³

c. correct

2. 

a. correct

b. correct

c. 12r^8-6r^4 + 9r^2, then multiply the rest by -1

3. correct

4. x² + 10

5. d=4, -1/3

Answer 2

Use the easy way to get the right answer!!!