.Simplify: (x + y)(2x + y) + (x + 2y)(x – y)
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Refer to given attachment
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Answer:
3x^2 + 4xy - y^2
Step-by-step explanation:
2x^2 + xy + 2xy + y^2 + x^2 - xy + 2xy -2y^2
3x^2 + 4xy -y^2
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