Question

please please please​

Answer 1

Respuesta:

R=6

Explicación paso a paso:

$R=(\sqrt{2} +1)^{2} +(\sqrt{2} -1)^{2} \\\\R=(\sqrt{2} +1)(\sqrt{2} +1)+(\sqrt{2} -1)(\sqrt{2} -1)\\\\R=2+\sqrt{2} +\sqrt{2}+1+2-\sqrt{2} -\sqrt{2}+1\\\\R=\sqrt{2}+\sqrt{2}-\sqrt{2}-\sqrt{2}+2+1+2+1\\\\R=6$