$2x^2+x-400=0$
$\int\sin\left(x\right)e^{2\cos\left(x\right)}dx$
$41-2n=2+n$
$\frac{3x^3-2x^2-12x+4}{x-2}$
$9x^2+6x^2+12x^4-15x$
$4-5x=x-32$
$512+16$
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