$4x-\frac{3}{5}>-x-6$
$\sec^2\left(-\theta\right)-1=tan^2\left(\theta\right)$
$36x^2+9y^2=18z^2$
$5x^2\:-6x+7x^2\:+3x-2+8x+7$
$a^{-1}b^3\:x\:4b$
$81x^2-36xy+4y^2$
$\left(8m+3\right)\left(8m-5\right)$
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