$3a^3-8a^2+7a-2$
$x^2+1\cos5$
$y'=y\:\tanh x$
$\left(3x+1\right)\left(x+3\right)^2$
$x^2-8x-1008=8$
$\int\left(\frac{2e^2}{1+e^3}\right)dx$
$2x\cdot0x^7$
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