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Simplify. (x + y)(2x + y) + (x + 2y)(x – y)..............

Simplify. 
(x + y)(2x + y) + (x + 2y)(x – y)..............

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

(x + y)(2x + y) + (x + 2y)(x – y)
= 2x^2+ xy + 2xy + y^2+ x^2- xy + 2xy - 2y^2
= 3x^2+ 4xy - y^2

Thanks

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