Solve the equation $yy''=y^2y'+(y')^2$
131223
How to solve the equation $yy''-y'y^2-(y')^2$?
108245
Solving the complex equation $\sin(z) = \cos(z)$
147442
Quadratic Diophantine Equation $x^2 + axy + y^2 = z^2$
85386
Differential equation $y''=\frac{y'}{2\sqrt y}$
141795
Solve the second order ODE $(2x^2 + 1)y'' − 4xy' + 4y = 0$
69172
$y'=$ ${-x+\sqrt{(x^2+4y)}}\over 2$ , $y(2)=-1$
76508
Differential Equations: solve the system
48039
How to solve this ode $xy''-(1+x)y'+y=x^2$?
87029
Solve $y^2=x^3-4$ in $x,y\in \mathbb{Z}$
19074
Solution to matrix equation PX=YP
53503
Solving the diophantine equation $y^{2}=x^{3}-2$
50760
Solutions to $y^2 = x^3 + k$?
25730
Solve $u_x + u_y + u = e^{x+2y}$
81437
Find the value of $y(1)$ of the ODE $y'+y=|x|$.
49211
Solving $f(x+y) = f(x)f(y)f(xy)$
144841
Find general solution $y''y^3=1$
66457
Series expansion of $xy'=y$