add a4-2a³b+3ab³+4a²b²+3b4-2b4-5ab³+7a³b-6a²b²+64
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Answer:
4a+5a^3b-2ab^3-2a^2b^2+4b+64.
Step-by-step explanation:
4a -2a^3b+3ab^3+4a^2b^2+12b-5ab^3+7a^3b-6a^2b^2+64
=4a+5a^3b-2ab^3-2a^2b^2+4b+64.
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