$\left(\frac{x}{3}+\frac{2}{x}\right)^4$
$-60-6\cdot\left(-10\right)-\left(-2\right)$
$\sen^{2}30^{\circ}+\sec^{2}45^{\circ}$
$54.38+59+384.5+0.009+5$
$-1+-9m+-8m$
$2y+\left(3y-2x\right)\frac{dy}{dx}=0$
$\frac{d}{dx}x^2+4y^2-2x+y=0$
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