$+9-5\cdot\left(-2\right)-3\cdot\left(-1\right)-5\cdot2+7$
$\left(a+b\right)^2=27$
$\frac{9x^3-4x^2+30x-10}{x-1}$
$\lim_{x\to1}\left(x\ln\left(x\right)-\ln\left(x\right)\right)$
$\sqrt[6]{x^3}$
$\frac{\left(1\:-cosx\right)}{senx.cosx\:}\:+\:senx\:+\:\frac{\left(cosx\:-1\right)}{tgx}=\:tgx$
$\left(3m^2-3\right)\cdot\left(3m+1\right)$
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