$\frac{\sin^2\left(x\right)\cos\left(x\right)}{\sin\left(x\right)-sin^3x}$

$\frac{5x+1}{3}\le7$

$3y-2z-3x-\left(x-\left[y-\left(z-x\right)\right]-2x\right)$

$3x^2+8x-16$

$\frac{1+2\sin\left(x\right)}{\sin\left(x\right)}-\sin\left(x\right)$

$\int\frac{-5x}{3x^2-8x+4}dx$

$\:x^2-8x+16x$