$tan\left(t\right)=-\frac{\sqrt{11}}{5}$
$\left(m+5\right)\left(m-3\right)\:=\:m^2+3m-10$
$x^2+5x+4<0$
$log9+log4x^2=4$
$\left(\frac{2}{3}a+\frac{5}{4}b\right)\left(\frac{2}{3}a-\frac{5}{4}b\right)$
$\frac{3x^3y^{-4}}{3xy^2}$
$\int e^{3t}sen\left(t\right)dt$
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