$$y^{\prime \prime }-9y^{\prime }+14y=0$$

$$x^2{y}^{\prime \prime }-7x{y}^{\prime }+16y=0$$

$$y^{\prime \prime }+6y^{\prime }+9y=0$$

$$y^{\prime \prime }+3y=0$$

$$x^2{y}^{\prime \prime }+7x{y}^{\prime }+9y=0$$

$$x^2{y}^{\prime \prime }+\frac{5y}{2}=0$$

$$x^2{y}^{\prime \prime }-6y=0$$

$$y^{\prime \prime }-6y^{\prime }+25y=0$$

$$y^{\prime \prime }={y^{\prime }}^2$$

$$x^2{y}^{\prime \prime }+x{y}^{\prime }+9y=0$$

$$y^{\prime \prime }-8y^{\prime }+25y=0$$

$$x^2{y}^{\prime \prime }+2x{y}^{\prime }-30y=0$$

$$y^{\prime \prime }+y^{\prime }-30y=0$$

$$16y^{\prime \prime }-8y^{\prime }+y=0$$

$$4x^2{y}^{\prime \prime }+8x{y}^{\prime }+y=0$$

$$2x^2{y}^{\prime \prime }-3x{y}^{\prime }+2y=0$$

$$9x^2{y}^{\prime \prime }+3x{y}^{\prime }+y=0$$

$$y^{\prime \prime }+20y^{\prime }+100y=0$$

$$x{y}^{\prime \prime }=3y^{\prime }$$

$$y^{\prime \prime }-5y^{\prime }=0$$

$$x{y}^{\prime \prime }-y^{\prime }=-3x{y^{\prime }}^3$$

$$t{y}^{\prime \prime }+y^{\prime }+ty=0$$

$$y^{\prime \prime }-9y=0$$

$$y^{\prime \prime }-8y^{\prime }+17y=0$$

$$y^{\prime \prime }+6y^{\prime }+13y=0$$

$$y^{\prime \prime }+8y^{\prime }+17y=0$$

$$t^2{y}^{\prime \prime }+t{y}^{\prime }+2y=0$$

$$y^{\prime \prime }-y^{\prime }-12y=0$$

$$y^{\prime \prime }+9y^{\prime }=0$$

$$x^{\prime \prime }+2x^{\prime }-10x=0$$

$$y^{\prime \prime }-12y^{\prime }+40y=0$$

$$x^2{y}^{\prime \prime }-12x{y}^{\prime }+42y=0$$

$$t^2{y}^{\prime \prime }+3t{y}^{\prime }+5y=0$$

$$y^{\prime \prime }-y^{\prime }-12y=0$$

$$y^{\prime \prime }+9y^{\prime }=0$$

$$t^2{y}^{\prime \prime }-12t{y}^{\prime }+42y=0$$

$$x^2{y}^{\prime \prime }+3x{y}^{\prime }+5y=0$$

$$16y^{\prime \prime }+24y^{\prime }+153y=0$$

$$y^{\prime \prime }+4y^{\prime }-5y=0$$

$$y^{\prime \prime }-6y^{\prime }+45y=0$$

$$x^2{y}^{\prime \prime }-x{y}^{\prime }-16y=0$$

$$x^2{y}^{\prime \prime }+3x{y}^{\prime }+2y=0$$

$$x^2{y}^{\prime \prime }+5x{y}^{\prime }+4y=0$$

$$y^{\prime \prime }-y=0$$

$$y^{\prime \prime }+2y^{\prime }+y=0$$

$$2t^2{y}^{\prime \prime }-3t{y}^{\prime }-3y=0$$

$$y^{\prime \prime }+9y=0$$

$$y^{\prime \prime }-y^{\prime }-2y=0$$

$$y^{\prime \prime }+9y=0$$

$$3t^2{y}^{\prime \prime }-5t{y}^{\prime }-3y=0$$

$$t^2{y}^{\prime \prime }+7t{y}^{\prime }-7y=0$$

$$y^{\prime \prime }+10y^{\prime }+24y=0$$

$$y^{\prime \prime }+16y=0$$

$$y^{\prime \prime }+6y^{\prime }+18y=0$$

$$t^2{y}^{\prime \prime }+t{y}^{\prime }-y=0$$

$$y^{\prime \prime }-5y^{\prime }+6y=0$$

$$y^{\prime \prime }+6y^{\prime }+8y=0$$

$$y^{\prime \prime }-4y^{\prime }+4y=0$$

$$y^{\prime \prime }+10y^{\prime }+25y=0$$

$$y^{\prime \prime }+9y=0$$

$$y^{\prime \prime }+49y=0$$

$$t^2{y}^{\prime \prime }+4t{y}^{\prime }-4y=0$$

$$t^2{y}^{\prime \prime }+6t{y}^{\prime }+6y=0$$

$$t^2{y}^{\prime \prime }+t{y}^{\prime }+(t^2-\frac{1}{4})y=0$$

$$t^2{y}^{\prime \prime }+3t{y}^{\prime }+y=0$$

$$a{y}^{\prime \prime }+b{y}^{\prime }+cy=0$$

$$t^2{y}^{\prime \prime }+at{y}^{\prime }+by=0$$

$$4t^2{y}^{\prime \prime }+4t{y}^{\prime }+(36t^2-1)y=0$$

$$t{y}^{\prime \prime }+2y^{\prime }+16ty=0$$

$$y^{\prime \prime }+b\left(t\right)y^{\prime }+c\left(t\right)y=0$$

$$y^{\prime \prime }+b\left(t\right)y^{\prime }+c\left(t\right)y=0$$

$$y^{\prime \prime }=0$$

$$y^{\prime \prime }-4y^{\prime }-12y=0$$

$$y^{\prime \prime }+y^{\prime }=0$$

$$y^{\prime \prime }+3y^{\prime }-4y=0$$

$$y^{\prime \prime }+8y^{\prime }+12y=0$$

$$y^{\prime \prime }+5y^{\prime }+y=0$$

$$8y^{\prime \prime }+6y^{\prime }+y=0$$

$$4y^{\prime \prime }+9y=0$$

$$y^{\prime \prime }+16y=0$$

$$y^{\prime \prime }+8y=0$$

$$y^{\prime \prime }+7y=0$$

$$4y^{\prime \prime }+21y^{\prime }+5y=0$$

$$7y^{\prime \prime }+4y^{\prime }-3y=0$$

$$4y^{\prime \prime }+4y^{\prime }+y=0$$

$$y^{\prime \prime }-6y^{\prime }+9y=0$$

$$y^{\prime \prime }-y^{\prime }=0$$

$$3y^{\prime \prime }-y^{\prime }=0$$

$$y^{\prime \prime }+y^{\prime }-12y=0$$

$$y^{\prime \prime }-7y^{\prime }+12y=0$$

$$2y^{\prime \prime }-7y^{\prime }-4y=0$$

$$y^{\prime \prime }-7y^{\prime }+10y=0$$

$$y^{\prime \prime }+36y=0$$

$$y^{\prime \prime }+100y=0$$

$$y^{\prime \prime }-2y^{\prime }+y=0$$

$$y^{\prime \prime }+4y^{\prime }+4y=0$$

$$y^{\prime \prime }+2y^{\prime }+5y=0$$

$$y^{\prime \prime }+4y^{\prime }+20y=0$$

$$y^{\prime \prime }+y^{\prime }-y=0$$

$$y^{\prime \prime }+y^{\prime }+y=0$$