$3\left(-3\right).3\left(0\right).3\left(2\right)$
$x^4+4x^3+10x^2+12x+5$
$\frac{d^2}{dx^2}\left(\frac{\ln\left(4x\right)}{x^4}\right)$
$\lim_{x\to1.9}\left(\sqrt{\frac{2+x}{2-x}}\right)$
$\left(x^2-a^2\right)\left(a^2-x^2\right)$
$3^6\cdot3^7$
$-x+\:5\:<=-6x\:-\:7$
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