$$\frac{d}{dx}\left(tanx^{tanx}\right)$$

$$\int_0^2\left(\sqrt{9^x}\right)dx$$

$$\frac{12^7\cdot12^{-5}}{12^2}$$

$$\int_0^2\frac{1}{\left(x^2-6x+5\right)}dx$$

$$-2x-z+3y-2x-2z+8$$

$$\int\frac{4x^{2}+6}{x^{3}+3x}dx$$

$$\left(4m+3n\right)\left(2m-5n\right)$$