$$2x^2+5x-2$$

$$\frac{2\sin^3\left(x\right)}{1-\cos\left(x\right)}=2\sin\left(x\right)+\sin\left(2a\right)$$

$$\frac{dx}{dy}-x=y^3$$

$$9-\left(x-2y\right)^2$$

$$\int\sin\left(5\right)xdx$$

$$36+16m^2+m^4$$

$$\:3x^2y\:-2xy^2$$