$5x+6\cdot7x-2$
$100n^2-160n+64$
$\frac{dy}{dx}\sin\left(y\right)^{\tan\left(x\right)}=\cos\left(x\right)^{\cot\left(y\right)}$
$\:2\left(x+2\right)\:-3\left(x-2\right)\:<\:x+6$
$10b-3ab^2$
$\lim_{x\to1}\left(\frac{\sin\left(x-1\right)}{x-1}\right)$
$\lim_{x\to-2.3}\left(3x^3-2x^2+4\right)$
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