Solve D^2+4D+3)Y=E^-x sinx
m-5 = -12
3(y+2)+x=12
4/(4x-3) - 2/3(x+3) = 0
4/4x-3 - 2/3(x+3) = 0
4/77 - 2/69
(x+1)(x+2)(x+3)(x+4)-48
3000 รท 12000
3000 divided by 12000
3044/19