$36x^2-36+9$
$\int\left(\frac{sen\:2x}{cos^2\:2x}\right)dx$
$\left(n^2-4\right)\left(n-2\right)$
$\left(0.6\right)^6\cdot\left(0.3\right)^{-2}$
$\left(m+2n\right)\cdot\left(m-2n\right)$
$2\left(x+1\right)^2=50$
$\log\left(10x\sqrt[3]{10}\right)$
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