60.1.286 problem 287

Internal problem ID [10300]
Book : Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section : Chapter 1, linear first order
Problem number : 287
Date solved : Monday, January 27, 2025 at 06:51:54 PM
CAS classification : [[_homogeneous, `class C`], _rational, _dAlembert]

\begin{align*} \left (2 y-4 x +1\right )^{2} y^{\prime }-\left (y-2 x \right )^{2}&=0 \end{align*}

✓ Solution by Maple

Time used: 0.090 (sec). Leaf size: 56

dsolve((2*y(x)-4*x+1)^2*diff(y(x),x)-(y(x)-2*x)^2=0,y(x), singsol=all)
 

\[ -\frac {x}{7}-\frac {9 \sqrt {2}\, \operatorname {arctanh}\left (\frac {\left (7 y-14 x +4\right ) \sqrt {2}}{2}\right )}{98}-\frac {2 \ln \left (7 \left (y-2 x \right )^{2}+8 y-16 x +2\right )}{49}+\frac {4 y}{7}-c_{1} = 0 \]

✓ Solution by Mathematica

Time used: 0.204 (sec). Leaf size: 215

DSolve[(2*y[x]-4*x+1)^2*D[y[x],x]-(y[x]-2*x)^2==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ \text {Solve}\left [\int _1^{y(x)}\left (\frac {8 x-4 K[2]-1}{7 \left (28 x^2-28 K[2] x-16 x+7 K[2]^2+8 K[2]+2\right )}+\frac {1}{7} \left (4-7 \int _1^x\left (\frac {2 (8 K[1]-4 K[2]-1) (-28 K[1]+14 K[2]+8)}{7 \left (28 K[1]^2-28 K[2] K[1]-16 K[1]+7 K[2]^2+8 K[2]+2\right )^2}+\frac {8}{7 \left (28 K[1]^2-28 K[2] K[1]-16 K[1]+7 K[2]^2+8 K[2]+2\right )}\right )dK[1]\right )\right )dK[2]+\int _1^x\left (-\frac {2 (8 K[1]-4 y(x)-1)}{7 \left (28 K[1]^2-28 y(x) K[1]-16 K[1]+7 y(x)^2+8 y(x)+2\right )}-\frac {1}{7}\right )dK[1]=c_1,y(x)\right ] \]