Question

(x + y) (2x + y) + (x + 2y) (x - y)​

Answer 1

Answer:

$3 {x}^{2} + 4xy - {y}^{2}$

Step-by-step explanation:

(x + y) (2x + y) + (x + 2y) (x - y)

= 2x² + 3xy + y² + x² + xy - 2y²

= 3x² + 4xy - y²

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Answer 2

Step-by-step explanation:

(3x+2y)+(2x+y)

(6x+2y)