$25\cot^2\theta\:-16=0$
$\lim_{x\to-8}\left(\frac{2x^2+5x-24}{x+8}\right)$
$x^2+6x-3$
$\int x^2e^{\frac{3x}{2}}dx$
$-4x+8=x-7$
$\left(x+4\right)\left(6x-5\right)$
$6x-8\left(9x-8\right)$
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