Question

20 POINTS MARKING BRAINLEIST JUST BE QUICK

Answer 1

3f^2 + 3f

Step-by-step explanation:

To find the opposite of f^2 + 3f +3 find the opposite of each term.

4f^2+ 6f+3-f^2-3f-3

combine 4f^2 and f^2 to get 3 f^2

Answer 2

Answer:

4f^2 - r^2 + 3r

Step-by-step explanation:

(4f^2 + 6r + 3) - (r^2 + 3r + 3)

Distribute

4f^2 + 6r + 3 - r^2 - 3r - 3

subtract +3 from -3

4f^2 + 6r - r^2 - 3r

combine like terms

4f^2 + 3r - r^2

rearrange terms

4f^2 - r^2 + 3r