$\left(8x+9\right)\left(9x-5\right)$
$\lim_{x\to0}\left(\frac{sin3h+1-cosx}{x}\right)$
$7x^3+5^2+3x-2\:\:\:x^2-2x-1$
$\left(ax^4+bx+c\right)^4$
$\lim_{x\to\frac{\pi}{2}}\left(\frac{tanx}{arctan\left(cosx\right)}\right)$
$-14+4+-8$
$w=ze^{xy}$
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