$\frac{dy}{dx}=2y+3x+1$
$\frac{\left(-12x^3+28x^2-7x-12\right)}{-2x-1}$
$\int e^{10x-2}dx$
$x-20=15$
$\left(\frac{4}{7}x^2-1\right)\left(\frac{4}{7}x^2+1\right)$
$\frac{cscx+1}{cotx}=\frac{1+sinx}{cosx}$
$\frac{9^2}{4}-ab+b^2$
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