$\frac{dy}{dx}=4\frac{y}{x}+x^4e^x$
$7,5-075+2,015$
$\int\frac{4x^3+4}{\left(x-1\right)^2\left(x^2+1\right)}dx$
$\int\ln\left(\frac{x+1}{x}\right)dx$
$ry\sqrt{18r^2y^2}$
$165-275+348-472-152$
$\int\sqrt{3-4t}dt$
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