$3x^2-4\ge\:5$

$x^2-26x+12$

$sen\left(x\right)sen\left(y\right)dx+cos\left(x\right)cos\left(y\right)dy$

$\frac{14^9.15^4.30^2}{80^3.35^3.21^6}$

$2\sqrt{3}\left(\cos\left(x\right)\right)\cdot\left(\csc\left(x\right)\right)+4\cos\left(x\right)-4\csc\left(x\right)-2\sqrt{3}$

$513+489+725+111$

$14x^2+15x-7$