x x
(-2*sin(2*x) + 2*cos(2*x))*e + (cos(2*x) + sin(2*x))*e
$$\left(- 2 \sin{\left(2 x \right)} + 2 \cos{\left(2 x \right)}\right) e^{x} + \left(\sin{\left(2 x \right)} + \cos{\left(2 x \right)}\right) e^{x}$$
x
-(-cos(2*x) + 7*sin(2*x))*e
$$- \left(7 \sin{\left(2 x \right)} - \cos{\left(2 x \right)}\right) e^{x}$$
x
(-13*cos(2*x) - 9*sin(2*x))*e
$$\left(- 9 \sin{\left(2 x \right)} - 13 \cos{\left(2 x \right)}\right) e^{x}$$