Answer:
1. (h+3)(h-3)
2. (a³+2)(a³-2)
3. (a+9)(a-9)
4. (9-2y)(9+2y) I'm not sure
5. (c+d)(c-d)
6. (h²+7)(h²-7)
* (_+_)(_+_)
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Answers & Comments
Answer:
1. (h+3)(h-3)
2. (a³+2)(a³-2)
3. (a+9)(a-9)
4. (9-2y)(9+2y) I'm not sure
5. (c+d)(c-d)
6. (h²+7)(h²-7)
* (_+_)(_+_)