$\frac{1}{7}-3\left(\frac{3}{7}n-\frac{2}{7}\right)$
$2x\:-7\:\ge5x\:+8$
$\left(x-y-z\right)\cdot\left(x+y+z\right)+\left(y-z\right)^2$
$\sqrt{x+9}+2=7$
$\left(a+4\right)\left(a+2\right)$
$\int\sin\left(x\right)\cdot\left(x^2+2x+1\right)dx$
$4^{-3+4-4+5}$
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