$\left(2\left(\cos^2\left(x\right)\right)\right)-1-\sin\left(x\right)$

$\left(3x^2-2xy+4y^5\right)\left(8x^3-7xy-6y\right)$

$\frac{\left(x\right)^5-\left(1\right)}{\left(x\right)-\left(1\right)}$

$\:-\:2\:x\:\le\:6\:$

$-\frac{7\left(6-3z\right)}{2}\:-\frac{2\left(z+4\right)}{2}$

$\int 2 x ^ { 2 } e ^ { - 3 x ^ { 3 } } d x$