Respuesta :

(x + y)^0 = 1

(x + y)^1 = x + y

(x + y)^2 = x^2 + 2x + y

(x + y)^3 = x^3 + 3x^2y + 3xy^2 + y^3

(x + y)^4 = x^4 + 4x^3y + 6x^2y^2 + 4xy^3 + y^4

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1

1 + 1

1 + 2 + 1

1 + 3 + 3 + 1

1 4 6 4 1

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I hope I helped you.