$\sin\left(x\right).\left(1-\cos\left(x\right)\right).\left(1+\sec\left(x\right)\right)=\sin\left(x\right).\cos\left(x\right)$

$\left(x^2+3\right)\left(x-3\right)\left(x+4\right)$

$\int\left(\cos\left(2x+3\right)\right)dx$

$\left(1+b+b\right)$

$\left(xycosx\right)dx+\left(xsenx+cosx+y\right)dy=0$

$\left(34a+12\right)^2$

$x^5+6x^4+9x^3\:-x^2-6x-9$