uklad-rownan-displaystyle-begincases-y-ax2a-y-fracb3x-2-endcases-nie-ma

$a=-1$a=-1 i $b=-3$b=-3

$a=1$a=1 i $b=3$b=3

$a=1$a=1 i $b=-3$b=-3

$a=-1$a=-1 i $b=3$b=3