$3x^2+24x-60$
$\lim_{x\to0}\left(\frac{1}{x}-\tan\left(90-x\right)\right)$
$4x^2+72x+324$
$0.45w-w$
$\sqrt{x}^2+1$
$\frac{1.5}{1.5}$
$y\frac{dx}{dy}=x-1$
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