$\sqrt{20h^3}$
$6y^2+11y-21$
$\left(\sqrt{\sqrt{x}+\sqrt{y}-\sqrt{4\left(\sqrt{xy}\right)}}\right)$
$\lim\:_{x\to\:0\:}\left(-\frac{2ln\left(2x\right)-4}{\sqrt{x}}\right)$
$8nb+15nb+6nb$
$y+11z-y+13z$
$sin\left(70^{\circ\:}\right)cos\left(50^{\circ\:}\right)+cos\left(70^{\circ\:}\right)sin\left(50^{\circ\:}\right)=x$
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