$$\int\frac{\left(x^2-25\right)}{x}dx$$

$$\lim_{x\to0}\left(\frac{x^2e^x+2}{tan^2x}\right)$$

$$\ln\left(x\right)\frac{dy}{dx}=\frac{x}{y}$$

$$40xy:-12x$$

$$\frac{d}{dx}3x^4y^2+3x^2=xy+3$$

$$4x^2-7x+7$$

$$4p^2+5.5m+2.5p^2-m+3m$$