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(a–3b)(a+3b)+(2a–3b)2–4a(b–a)
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(a–3b)(a+3b)+(2a–3b)2–4a(b–a)

User Mike Monteiro
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1 Answer

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Answer:

Explanation:

5a²-9b²+4a-6b-4ab

User Adhamzhon Shukurov
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