$$\left(-15+5\right)-\left(-17+5\right)$$

$$\frac{dy}{dx}=e^{2x}\left(1+y^2\right)$$

$$\int_1^2\frac{4+3t}{3-7t}dt$$

$$5x+6<10x-10$$

$$900-1z^2$$

$$\frac{dy}{dx}=x^3\left(x-xy\right)$$

$$\lim_{x\to4}\left(\frac{4x-2x^2}{2x^2-x-12}\right)$$