$4x^2-30x+56$
$\frac{dy}{dx}=3-\frac{2x}{100+4t}$
$\frac{x^3-27}{m-3}$
$128a^3-250b^3$
$2=\sec\left(x\right)+\sec^2\left(x\right)$
$x\sqrt{2x}$
$42\cdot34$
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