$-2\left(x+x^2\right)=3$
$5x-1>0$
$\int\sqrt{4x-6}dx$
$sin\left(\arcsin\left(2\right)\right)$
$\cos\left(a\right)\left(\tan\left(a\right)+1\right)+\cos\left(a\right)$
$15x^2+17x-18=0$
$\frac{-2x}{2x}$
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