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Answer:
A.
1. 16=(1+3)²
2. 25=(2+3)²
3. 36=(3+3)²
4. 49=(4+3)²
Un = (n +3)²
64=(5+3)²
B.
2^3,3^3,4^3,5^3,so the next one is 6^3, which is 216.
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