$-1\:+\:-1\:-\:3$
$\left(\left(-\frac{32}{2}\right)-\left(-\frac{15}{5}\right)+\left(-15\right)\right)$
$4x-3=17$
$a^2-56a+784$
$2\tan\left(\arccos\frac{x}{6}\right)$
$\int\left(\frac{x^4+1}{x^3+2x^2}\right)dx$
$3\left(x+2\right)=5\left(x-6\right)$
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