Use a variable substitution to get into a Bessel equation form?

[ipat918]

Homework Statement

Use a variable substitution to get into a Bessel equation form?

Relevant Equations

Bessel equation

Hello,

For my homework I am supposed to get-

into the form of a Bessel equation using variable substitution. I am just not sure what substitution to use.
Thanks in advance.

 

[Orodruin]

Forum rules require you to show your efforts at finding a solution. Also, please state the entire problem as given.

 

[ipat918]

Hello,

I apologize, I didn't read the rules properly beforehand. The question is part of a much longer, complex question, this is just the part I am stuck on and it is literally all the information I have to solve it. As for my efforts, well there are none right now. I have no idea where to even start on guessing what substitution to use.

Thanks