5. x^{2}-2x-4y+13=0
(D^3-3D^2-D-3)y=0
9+10
$6$ raise to power $2$
31y-2y^2
12*11
200+40
90base10 to base 5
2+9
1,4,6,8,9,9,7,5
l bk leqi
a plus bi ka hole squire
