$\int\left(x^2\sqrt{\left(2x^3+9\right)}\right)dx$
$x'+xy=0$
$\tan\left(x\right)+\cot\left(x\right)-2\csc\left(2x\right)$
$\left(n^4-6\right)\left(n^4-7\right)$
$-240-8m$
$x2\:+\:8x\:=\:-\:15$
$\tan\left(1\right)=1$
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