$a^xb^x\left(a^{x+1}+b^{x+2}\right)\left(a^{x+1}-b^{x+2}\right)$
$\frac{d}{dx}5x^5-3x^2-x-1$
$\left(x-1\right)\left(x-20\right)\left(x-4\right)$
$\sin=\frac{4\sqrt{13}}{17}$
$\frac{d}{dx}2^{x^2-3}$
$u^2+2u+16$
$\int u^{-1}du$
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