
ok, i tried to check a solution, that i calculated by hand, with the classpad
but the classpad showed me an other solution as i calculated.
But i know that my solution is the right one

here is the differential equation:
y'' + 2y' - 8y = 3e^(2x)
the right solution is: y= C1*e^(2x) + C2*e^(-4x) + 0,5x * e^(2x)
but the classpad shows: y= C1*e^(2x) + C2*e^(-4x) + 0,5x * e^(2x) - 1/12 * e^(2x)
why does the classpad calculate a wrong solution ?
Can you try to calculate this equation with your classpad, maybe its only my classpad

shall i better send this problem to casio ?
thx