Please show me full answer for this one ind the general solu
Please show me full answer for this one:
ind the general solution of the given second order differential equation 9Xy 20y 5xSolution
First we solve the homogeneous ODE
x^2y\'\'+9xy\'-20y=0
Let, y=x^r
Substituting gives
r(r-1)+9r-20=0
r^2+8r-20=0
r^2+10r-2r-20=0
r=-10,2
So, general solution to homogeneous ODE is
yh= a/x^{10}+bx^2
Now let particular solution be: c/x
Substituting gives
2c/x-9c/x-20c/x=5/x
-27c/x=5/x
c=-5/27
So general solution is
y(x)=a/x^{10}+bx^2-5/(27x)

