$15x-2<38+5x$
$15x^2\:-29x\:-14\:\cdot5x\:+2$
$3x^2-12x$
$\frac{-1}{4}a>-1$
$\left(4p^3+5q^3\right)^4$
$x^4+18^2+81$
$\frac{1}{4}\left(16+4p\right)$
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