Answer:
1.a²⁴
2.5a³b²
3. 25a²+10a+1
4.30c²+19ac-21/2a²c-7a
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Answers & Comments
Answer:
1.a²⁴
2.5a³b²
3. 25a²+10a+1
4.30c²+19ac-21/2a²c-7a