I don't know how to solve the following problem!!

Prove that the general solution of,

$\displaystyle y'' + \frac{1-2a}{x}y' + \left[ (bcx^{c-1})^{2} = \frac{a^{2}-n^{2}c^{2}}{x^{2}}\right]y =0$

is given by $\displaystyle y=x^{a}[c_{1}J_{n}(bx^{c}) + c_{2}N_{n}(bx^{c}) ]$

Use this result to solve $\displaystyle y''+xy=0$

Where do I start?? what substitution do I make to make it look like a bessel equation???? Any suggestion?