$\int5x^2sen\left(5x\right)dx$
$1.07^{10}$
$69+63+65+50+70$
$\frac{x^4-x^3+2x^2-x+2}{x+1}$
$ab-3bc-2a+bc$
$\lim_{x\to0}\left(\frac{2x^2+5x}{x-3}\right)$
$\left(4a+6x\right)^2$
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