$\sqrt{2\left(x+h\right)+1}-\sqrt{2x+1}$
$\lim_{x\to0}\left(x\cdot tan\left(\frac{10}{x}\right)\right)$
$2x^3-18x^3+54x^2+54x$
$\int-1dy$
$y^2-3y+9$
$10q^2+20q^3+q^6$
$4x^4-5x^2x+4$
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