$y=\ln\left(3x\right)-2x$
$\frac{4}{6}m^8x-1$
$\left(4x-9y\right)\left(4x-9y\right)$
$2,458+0,97+1,3$
$\frac{\csc^{2}\left(x\right)-1}{\sen^{2}\left(x\right)+\cos^{2}\left(x\right)}$
$\left(-3\right)\left(-30\right)$
$169x^4-13x^2y^2+\frac{y^2}{4}$
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