$x^2-4x\:\le5$
$\cos\left(\cos^{-1}\left(0.5\right)\right)$
$x^6+8y^6$
$5x^2+22x-15$
$\left(5ab+8cd\right)^2$
$19x^4-6x^4+4x^4$
$\log_a\left(b\right)+c\:\log_a\left(d\right)-r\:\log_a\left(s\right)$
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