$15\:\frac{x^{-3}z^5}{3\:x^7}$
$-4x+14\le54$
$\left(a-3x^2\right)\left(a+3x^2\right)$
$\int\frac{\left(x+2\right)}{x^3-1}dx$
$1+a^3\:1+a$
$-1\left(4y-1\right)^4$
$279\cdot0$
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