$\log\left(10\right)^{-1}$
$144a^2-169b^2$
$25x^9-10x^7+15x^5-5x^3$
$mn\sqrt{8a^4}b^3$
$3+5x+4$
$\frac{x-6}{x-1}\ge-1$
$3\sec^2x=5\left(1+\tan x\right)$
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