Respuesta :

wegnerkolmp2741o

Answer:

x^2 +2xy+y^2

Step-by-step explanation:

(x+y)^2

(x+y) (x+y)

FOIL

first = x*x = x^2

outer: x*y

inner = x*y

last

y*y = y^2

Add them together

x^2 +xy+xy+y^2

x^2 +2xy+y^2

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