\[ y'(x)=\frac {-a^2-a b y(x)-a b \sqrt {x}+a b+b^2 x+b^2}{a \left (a (-y(x))-a \sqrt {x}+a+b x+b\right )} \] ✓ Mathematica : cpu = 0.114632 (sec), leaf count = 649
\[\left \{\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,1\right ]}\right \},\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,2\right ]}\right \},\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,3\right ]}\right \},\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,4\right ]}\right \},\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,5\right ]}\right \},\left \{y(x)\to -\frac {a \sqrt {x}-a-b x-b}{a}+\frac {1}{a^2 \text {Root}\left [\text {$\#$1}^6 \left (16 x^3+16 e^{12 c_1}\right )-\frac {24 \text {$\#$1}^4 x^2}{a^4}+\frac {8 \text {$\#$1}^3 x^{3/2}}{a^6}+\frac {9 \text {$\#$1}^2 x}{a^8}-\frac {6 \text {$\#$1} \sqrt {x}}{a^{10}}+\frac {1}{a^{12}}\& ,6\right ]}\right \}\right \}\] ✓ Maple : cpu = 0.405 (sec), leaf count = 86
\[y \relax (x ) = \frac {3 \tanh \left (\RootOf \left (729 x^{3} \left (\tanh ^{6}\left (\textit {\_Z} \right )\right ) a^{6}-2187 x^{3} \left (\tanh ^{4}\left (\textit {\_Z} \right )\right ) a^{6}+2187 x^{3} \left (\tanh ^{2}\left (\textit {\_Z} \right )\right ) a^{6}-729 a^{6} x^{3}+64 c_{1} {\mathrm e}^{2 \textit {\_Z}}\right )\right ) \sqrt {x}\, a -a \sqrt {x}+2 a +\left (2+2 x \right ) b}{2 a}\]