$2 y ^ { 2 } - 1 y ^ { 5 }$
$\left(2+i\right)^3$
$36x^2+48x+81$
$\frac{\cosh\left(x\right)+1}{\cosh^2\left(x\right)-1}$
$\ln\left(2-\cos\left(2x\right)\right)=0$
$\frac{dy}{dx}\left(\frac{e^x}{\ln\left(x\right)}\right)$
$2\sin x-\sqrt{3}=0$
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