$$xy^2-x-\left(x^2y+y\right)\frac{dy}{dx}=0$$

$$\int_e^{\infty}x^3lnxdx$$

$$1.3x\left(3x-3\right)$$

$$x^2+14x+56$$

$$\left(x-1\right)^2>\left(x-1\right)$$

$$\lim_{x\to0}\left(\frac{12sinx}{x}\right)$$

$$\int_1^{x^2}e^{t^2}dt$$