factorize the following a^4_81b^4
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Answer:
( a² + 9b² )( a + 3b² )( a - 3b)
Step-by-step explanation:
a^4 - 81b^4 = ( a² + 9b² )( a² -9b² ) = ( a² + 9b² )( a + 3b² )( a - 3b)
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