$\left(\left(1\right)^4\left(2\right)^4+\left(1\right)^8+\left(2\right)^8\right)$
$s^9s^8a$
$\left(xz+5=0\right)$
$\left(15x+14\right)\left(400x+114\right)$
$\left(x+3x\right)+\left(x-3x\right)$
$\lim_{x\to0}\left(x^2+1\right)$
$\frac{\left(1-2sin^2\theta\:\right)\:}{cos\theta+sin\:\theta\:}$
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