$48+\left(8+2-7+1-10\right)$
$\:-6\:-\:7\left(\:-11\:-\:5s\right)$
$8a^3+2a^2-3a$
$-2\left(x+1\right)=2\left(x-1\right)$
$cos\left(\frac{\pi}{2}-x\right)^x$
$\int\cos^2\left(4x^3-3\right)x^2dx$
$6x+21$
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