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a0x+y′(x)(a1x+b1y(x)+c1)+(a2x+c2)y′(x)2+b0y(x)+c0=0 ✓ Mathematica : cpu = 238.665 (sec), leaf count = 478
Solve[{x=(b0+b1K$379019)exp((b1(b0−a1)+2a2b0)tan−1(a1+2K$379019(a2+b1)+b04a0(a2+b1)−a12−2a1b0−b02)(a2+b1)4a0(a2+b1)−a12−2a1b0−b02−(2a2+b1)log(a0+K$379019(a1+K$379019(a2+b1)+b0))2(a2+b1))∫(−c1−2c2K$379019b0+b1K$379019−b1(−c0−c1K$379019−c2K$3790192)(b0+b1K$379019)2)exp((2a2+b1)log(a0+K$379019(a1+K$379019(a2+b1)+b0))2(a2+b1)−(b1(b0−a1)+2a2b0)tan−1(a1+2K$379019(a2+b1)+b04a0(a2+b1)−a12−2a1b0−b02)(a2+b1)4a0(a2+b1)−a12−2a1b0−b02)(b0+b1K$379019)(K$379019−−a0−a1K$379019−a2K$3790192b0+b1K$379019)dK$379019+c1(b0+b1K$379019)exp((b1(b0−a1)+2a2b0)tan−1(a1+2K$379019(a2+b1)+b04a0(a2+b1)−a12−2a1b0−b02)(a2+b1)4a0(a2+b1)−a12−2a1b0−b02−(2a2+b1)log(a0+K$379019(a1+K$379019(a2+b1)+b0))2(a2+b1)),y(x)=x(−a0−a1K$379019−a2K$3790192)b0+b1K$379019+−c0−c1K$379019−c2K$3790192b0+b1K$379019},{y(x),K$379019}] ✓ Maple : cpu = 1.861 (sec), leaf count = 1602
{12a2x+2c2(2e−2a2b0+b1(a1−b0)(4a2+4b1)a0−(a1+b0)2(a2+b1)arctan((a2+b1)b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b1(a2+b1)y(x)+(−b0x+c1)a2+(a1x+c1)b1−c2(a1+b0)(4a2+4b1)a0−(a1+b0)2(a2x+c2))(b1b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b12y(x)+(a1x+c1)b1−2b0(a2x+c2))(_C1+1/2∫−a1x−b1y(x)−b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12−c12a2x+2c2−(2_ac2+c1)b0+b1(_a2c2−c0)(_ab1+b0)2e−2a2b0+b1(a1−b0)(4a2+4b1)a0−(a1+b0)2(a2+b1)arctan((2a2+2b1)_a+a1+b0(4a2+4b1)a0−(a1+b0)2)((a2+b1)_a2+(a1+b0)_a+a0)−b12a2+2b1d_a)(1/2(b1(a2+b1)y(x)+(−b0x+c1)a2+(a1x+c1)b1−c2(a1+b0))b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b12(a2+b1)(y(x))2+((2a1x+2c1)b12+(((a1−3b0)x+2c1)a2−c2(a1+3b0))b1−2b0a2(a2x+c2))y(x)+((−2a0x2−2c0x)a2+a12x2+(−2a0c2+2c1a1)x−2c0c2+c12)b1−2a22c0x+(−a1b0x2+(2a0c2+c1(a1−b0))x−2c0c2+c12)a2−(a1(a1+b0)x−2a0c2+c1(a1+b0))c2(a2x+c2)2)−2a2−b12a2+2b1+2a2x2+2xc2)=0,12a2x+2c2(−2e−2a2b0+b1(a1−b0)(4a2+4b1)a0−(a1+b0)2(a2+b1)arctan((−a2−b1)b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b1(a2+b1)y(x)+(−b0x+c1)a2+(a1x+c1)b1−c2(a1+b0)(4a2+4b1)a0−(a1+b0)2(a2x+c2))(−b1b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b12y(x)+(a1x+c1)b1−2b0(a2x+c2))(_C1−1/2∫−a1x−b1y(x)−c1+b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c122a2x+2c2−(2_ac2+c1)b0+b1(_a2c2−c0)(_ab1+b0)2e−2a2b0+b1(a1−b0)(4a2+4b1)a0−(a1+b0)2(a2+b1)arctan((2a2+2b1)_a+a1+b0(4a2+4b1)a0−(a1+b0)2)((a2+b1)_a2+(a1+b0)_a+a0)−b12a2+2b1d_a)(1/2(−b1(a2+b1)y(x)+(−a1x−c1)b1+(b0x−c1)a2+c2(a1+b0))b12(y(x))2+((2b1a1−4a2b0)x−4b0c2+2b1c1)y(x)+(−4a0a2+a12)x2+(−4a0c2+2c1a1−4a2c0)x−4c0c2+c12+b12(a2+b1)(y(x))2+((2a1x+2c1)b12+(((a1−3b0)x+2c1)a2−c2(a1+3b0))b1−2b0a2(a2x+c2))y(x)+((−2a0x2−2c0x)a2+a12x2+(−2a0c2+2c1a1)x−2c0c2+c12)b1−2a22c0x+(−a1b0x2+(2a0c2+c1(a1−b0))x−2c0c2+c12)a2−(a1(a1+b0)x−2a0c2+c1(a1+b0))c2(a2x+c2)2)−2a2−b12a2+2b1+2a2x2+2xc2)=0}
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