$\lim_{t\to1}\:\sqrt{t}$
$6x^2-16x-6$
$\left(\frac{2x-2y}{2-1z^3}\right)^2$
$3^{11}\cdot3^{-7}\cdot3^{-5}$
$10x^2+x-21=0$
$7x+2=4x+23$
$\left(+35\right)-\left(-32\right)+\left(-16\right)-\left(-24\right)+\left(+28\right)-\left(-36\right)+\left(+17\right)-\left(+16\right)-\left(-20\right)+\left(-8\right)$
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