$8\left(x+5\right)-11\left(x-1\right)$
$-169m^4+49n^2$
$t^2+t$
$\left(y^5+2\right)\left(2-y^5\right)$
$y0=3$
$\left(\:7\:-\:3y\right)^3$
$-\frac{30}{d}-d+20,\:d=-3$
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