$160\cdot160$
$41-\left(-24\right)$
$3-\left(-2\right)-3$
$-142-432$
$\frac{x^2-2x+2}{x+1}$
$\lim_{x\to\infty}\left(-\frac{2\left(x-1\right)^2}{x}\right)$
$\left(b+1\right)\cdot\left(b+5\right)$
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