1.62 problem 62

Internal problem ID [6625]

Book: First order enumerated odes
Section: section 1
Problem number: 62.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, class C], _dAlembert]

Solve \begin {gather*} \boxed {y^{\prime }-\left (1+6 x +y\right )^{\frac {1}{4}}=0} \end {gather*}

Solution by Maple

Time used: 0.063 (sec). Leaf size: 109

dsolve(diff(y(x),x)=(1+6*x+y(x))^(1/4),y(x), singsol=all)
 

\[ x +216 \ln \left (-6 x -y \relax (x )+1295\right )+12 \sqrt {1+6 x +y \relax (x )}+216 \ln \left (\sqrt {1+6 x +y \relax (x )}-36\right )-216 \ln \left (\sqrt {1+6 x +y \relax (x )}+36\right )-144 \left (1+6 x +y \relax (x )\right )^{\frac {1}{4}}-432 \ln \left (\left (1+6 x +y \relax (x )\right )^{\frac {1}{4}}-6\right )+432 \ln \left (6+\left (1+6 x +y \relax (x )\right )^{\frac {1}{4}}\right )-\frac {4 \left (1+6 x +y \relax (x )\right )^{\frac {3}{4}}}{3}-c_{1} = 0 \]

Solution by Mathematica

Time used: 3.23 (sec). Leaf size: 79

DSolve[y'[x]==(1+6*x+y[x])^(1/4),y[x],x,IncludeSingularSolutions -> True]
 

\[ \text {Solve}\left [\frac {1}{6} \left (y(x)-8 (y(x)+6 x+1)^{3/4}+72 \sqrt {y(x)+6 x+1}-864 \sqrt [4]{y(x)+6 x+1}+5184 \log \left (\sqrt [4]{y(x)+6 x+1}+6\right )+6 x+1\right )-\frac {y(x)}{6}=c_1,y(x)\right ] \]