$$a + b = 8 , a b = 6$$
$a=\sqrt{10}+4\approx 7.16227766\text{, }b=4-\sqrt{10}\approx 0.83772234$
$a=4-\sqrt{10}\approx 0.83772234\text{, }b=\sqrt{10}+4\approx 7.16227766$
