For the differential equation
(x + 2)\(\frac{{{{\rm{d}}^{\rm{2}}}{\rm{y}}}}{{{\rm{d}}{{\rm{x}}^{\rm{2}}}}}\) - (2x + 5) \(\frac{{{{\rm{d}}^{\rm{}}}{\rm{y}}}}{{{\rm{d}}{{\rm{x}}^{\rm{}}}}}\) + 2y = (x + 1) ex
one of the complementary function is:
1
y = e2x
2
y = x
3
y = ex
4
y = e-x
5
Not Attempted