Question

Simplify the following expression(x+ y) (2x+y)+(x+2y)(x-y)​

Answer 1

Answer:

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

= (2x²+xy+2xy+y²) + ( x²-xy+2xy-2y²)

= 3x²+4xy-y²

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Answer 2

Answer:

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

=(2x²+xy+2xy+y²) +(x²-xy+2xy-2y²)

=3x²+4xy-y²

Step-by-step explanation:

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