Question

ayuda
a qué es igual: ​

Answer 1

Explicación paso a paso:

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