Simplify : (3a-b²)+(2a-b) ²-2(3a-b) (2a-b)
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Answer:
3a-8a^2-2b^2+6ab
Step-by-step explanation:
(3a-b^2)+(2a-b) ^2-2(3a-b) (2a-b)
3a-b^2+4a^2+b^2-4ab-2(6a^2-2ab-3ab+b^2)
3a+4a^2-4ab-2(6a^2-5ab+b^2)
3a-8a^2-2b^2+6ab
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