(2a_b)2+(4a-2b)(a+b)+(a+b)2
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4a-2b+4a^2+4ab-2ab-2b^2+a^2+b^2+2ab
=5a^2-b^2+4a-2b+4ab
MARK BRAINLIEST
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Answer:
Step-by-step explanation:
4a-2b+4a^2+4ab-2ab-2b^2+a^2+b^2+2ab
=5a^2-b^2+4a-2b+4ab
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