Question

ayudame porfavor ayúdenme ​

Answer 1

Respuesta:

$\sqrt{(x {}^{2} + 2xy + y {}^{2}) - (x {}^{2} - 2xy + y {}^{2}) - 4xy } = \sqrt{x {}^{2} + 2xy + y {}^{2} - x {}^{2} + 2xy - y {}^{2} - 4xy } = \sqrt{0} = 0$