$3c+12=3$
$\left(x+2\right).\left(x+5\right)>0$
$x^3+\:x^2\:-4x\:-\:4\:$
$\frac{x^5-3x^3-6}{x-1}$
$3x+2-5x+4-2x+1$
$\int\left(\frac{e^{7\sqrt{x}}}{\sqrt{x}}\right)dx$
$\left(7xz^2-4xy^2\right)^2$
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