$\int\frac{x}{\left(x+2\right)\left(2x+1\right)}dx$
$-18:6-35:\left(-7\right)+\left(-11\right)$
$4b^3\cdot bu^2$
$\frac{x^2-11x+10}{x-1}$
$\cos\left(x+\frac{\pi}{4}\right)=\frac{\sqrt{2}}{2}.\left(cosx-senx\right)$
$+7+4+3$
$12m-8+3m-10+5m$
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