$-4x+5x+2$
$x^{2}-5x-8$
$4-x^6$
$\:\left(x+5\right)\left(x-5\right)\:-\:\left(x+4\right)\left(x-4\right)$
$4x-8<6$
$\int_0^1\left(\frac{1}{\sqrt{x}e^{\sqrt{x}}}\right)dx$
$m^2+4m-3$
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