$\int\left(\frac{1}{\left(21-0.75\cdot q\right)\cdot\left(15-0.25\cdot q\right)}\right)dq$
$-5>4x+15$
$\frac{35}{5x}$
$\lim_{x\to2}\left(sen\left(x\right)cos\left(x\right)\right)$
$2ab-5a^2$
$i ^ { 0 }$
$\left(-2x^3y^2\right)\cdot\left(3xy^3z^2\right)\cdot\left(-4x^3yz^3\right)$
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