$x^2-23x-24$
$\left(5a-4\right)\left(5a+4\right)$
$\int e^{7x}\cdot sen\left(3x\right)dx$
$7-\left(-2\right)+5$
$11.19^2$
$\left(-5\right)\left\{\left(-17\right)-\left(-19\right)\right\}+12+\left(-1\right)$
$\left(x+\frac{1}{2}\right)\cdot\left(x+\frac{3}{2}\right)$
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