1. 9
2. 64
3.
4. -48
5.
6. 30xy
7. -14
8. 12x-4y
9. +10mn
10 10 -
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Answers & Comments
1. 9
2. 64
3.![x^{2} x^{2}](https://tex.z-dn.net/?f=x%5E%7B2%7D)
4. -48![m^{2} m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
5.![a^{8\\} a^{8\\}](https://tex.z-dn.net/?f=a%5E%7B8%5C%5C%7D)
6. 30xy
7. -14![ab^{3} ab^{3}](https://tex.z-dn.net/?f=ab%5E%7B3%7D)
8. 12x-4y
9.
+10mn
10 10
- ![6ab^{2} 6ab^{2}](https://tex.z-dn.net/?f=6ab%5E%7B2%7D)