$20x+1>5$
$b\cdot5+1.5b\cdot2+3b$
$64y^2-128y+64$
$m^5n^0\left(-2m^3\right)^4$
$\frac{4}{3}x-x$
$\int\frac{\left(x+1\right)}{\left(x+2\right)^2\left(x-2\right)}dx$
$\left(7a-5b+3c\right)\left(7a-4b+2c\right)$
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