Question

1) (x+y)(2x + y) + (x + 2y)(x - y)​

Answer 1

Answer:

(x+y)(x-y)

Step-by-step explanation:

$(x + y)(2x + y) + (x + 2y)( x- y) \\ = x(x + y) + y(x - \: y) \\ = (x +y )( x- y)$