$\left(-2\right).\left(-2\right).\left(-2\right).\left(-2\right).\left(-2\right).\left(-2\right)$
$\frac{sen\:a}{cos\:ec\:a}+\frac{cos\:a}{sec\:a}=1$
$\ln\left(x\right)+\ln\left(x+3\right)=\ln\left(10\right)$
$p-16=7$
$\frac{x^3-6x^2+3x+8}{x+1}$
$\left(9m^4\:-\:3n\right)^2$
$x^4-x^3-2x-4$
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