[_separable]
Book solution method
No Missing Variables ODE, Solve for
Mathematica ✓
cpu = 0.00403022 (sec), leaf count = 19
Maple ✓
cpu = 0.009 (sec), leaf count = 15
DSolve[x^2*y'[x]^2 == y[x]^2,y[x],x]
Mathematica raw output
{{y[x] -> C[1]/x}, {y[x] -> x*C[1]}}
Maple raw input
dsolve(x^2*diff(y(x),x)^2 = y(x)^2, y(x),'implicit')
Maple raw output
y(x) = _C1/x, y(x) = _C1*x