$x=0\text{, }y=0$
$x=1\text{, }y=1$
$x=e^{\frac{4\pi i}{5}}\approx -0.809016994+0.587785252i\text{, }y=e^{\frac{2\pi i}{5}}\approx 0.309016994+0.951056516i$
$x=e^{\frac{8\pi i}{5}}\approx 0.309016994-0.951056516i\text{, }y=e^{\frac{4\pi i}{5}}\approx -0.809016994+0.587785252i$

$x=0\text{, }y=0$
$x=1\text{, }y=1$