$4x-4<40$
$4z^2-100$
$y\frac{dy}{dx}=3x$
$\int x^2e^{-\left(a+s\right)t}dx$
$x^2+14x+64$
$\lim_{x\to1}\left(\left(\frac{\sin\:\left(x-1\right)}{\left(x-1\right)}\right)^{\frac{1}{\left(x-1\right)^2}}\right)$
$\int\left(\frac{x}{\sqrt[4]{x+7}}\right)dx$
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