2.32 problem 31

Internal problem ID [7168]

Book: Own collection of miscellaneous problems
Section: section 2.0
Problem number: 31.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

\[ \boxed {y^{\prime \prime }-y x=x^{2}} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 16

dsolve(diff(y(x),x$2)-x*y(x)-x^2=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \operatorname {AiryAi}\left (x \right ) c_{2} +\operatorname {AiryBi}\left (x \right ) c_{1} -x \]

Solution by Mathematica

Time used: 0.041 (sec). Leaf size: 30

DSolve[y''[x]-x*y[x]-x^2==0,y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(x)\to \pi x \operatorname {AiryAiPrime}(x) \operatorname {AiryBi}(x)+c_2 \operatorname {AiryBi}(x)+\operatorname {AiryAi}(x) (-\pi x \operatorname {AiryBiPrime}(x)+c_1) \]