14.128 Problem number 1024

\[ \int \frac {(d+e x)^2}{\left (c d^2+2 c d e x+c e^2 x^2\right )^3} \, dx \]

Optimal antiderivative \[ -\frac {1}{3 c^{3} e \left (e x +d \right )^{3}} \]

command

integrate((e*x+d)^2/(c*e^2*x^2+2*c*d*e*x+c*d^2)^3,x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ -\frac {e^{\left (-1\right )}}{3 \, {\left (x e + d\right )}^{3} c^{3}} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \text {Exception raised: NotImplementedError} \]________________________________________________________________________________________