$\frac{z^3}{z-1}$
$2^1.\:2^1$
$\frac{cosx+sinx}{sinx}=cot\left(x\right)+1$
$x+14=16$
$2x^2-7x+4=0$
$\int_{-4}^4\left(-x\right)dx$
$45a\:-\:60\:b\:+\:12\:-\:24\:+\:80b$
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