Combine like terms:
16.
13 + 4 = 17
Answer: 17q^2
17.
3 + 8 = 11
Answer: 11w^3
18.
9 - 2 = 7
14 - 12 = 2
Answer:
= 7h^2 + 2g
19.
25 - 2 = 23
9 + 5 = 14
Answer:
= 23r^3 + 14s
20.
7z^2 — No change because you combine any other like terms
16 - 9 = 7
32 — Also has no other like terms
Answer:
= 7z^2 + 7y + 32
21.
18 - 6 = 12
12j^3 — Doesn’t change
48 — Doesn’t change
Answer:
= 12j^3 + 12k^2 + 48