$$\left(xy^2+x^2y^2\right)dx+x^2ydy=0$$

$$\left(2a-z\right)^4$$

$$-2x^{3}y^{2}z^{10}\cdot5xyz\cdot10x^{6}y^{7}z^{2}$$

$$144a^2m^6n^4-4x^2y^22^4$$

$$\int\frac{1}{x^2\sqrt{25\:+\:x^2}}dx$$

$$\left(\left[\left(7\cdot3\right)-2+4\right]\right)$$

$$\sin\left(-\frac{8}{17}\right)\cos\left(-\frac{15}{17}\right)$$