$$4-8=3x^{2}+5; 3x+1$$
$x=-\sqrt{3}i\approx -0-1.732050808i\text{, }y=-3\sqrt{3}i+1\approx 1-5.196152423i$
$x=\sqrt{3}i\approx 1.732050808i\text{, }y=1+3\sqrt{3}i\approx 1+5.196152423i$
