$2x^2+4x+2$
$\left(y+12\right)\left(y+19\right)$
$\frac{tana}{cosa}$
$-2+5u=33$
$x^2+30x-104$
$\int\frac{1-4x}{x^2-9}dx$
$3^5\cdot2^3$
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