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a2y(x)n+x4y″(x)=0 ✗ Mathematica : cpu = 0.0328033 (sec), leaf count = 0 , could not solve
DSolve[a^2*y[x]^n + x^4*Derivative[2][y][x] == 0, y[x], x]
✓ Maple : cpu = 1.18 (sec), leaf count = 128
{y(x)=ODESolStruc(_ae∫_b(_a)d_a+_C1,[{dd_a_b(_a)=(_b(_a))2(a2_b(_a)(n−1)2_an−2_a(n−3)_b(_a)−2n+10)4},{_a=y(x)x−2(n−1)−1,_b(_a)=21(n−1)xddxy(x)−2y(x)(x−2(n−1)−1)−1},{x=e(∫_b(_a)d_a+_C1)(n−1)2,y(x)=_ae∫_b(_a)d_a+_C1}])}
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