$$\int\frac{23}{xln4x}dx$$

$$\frac { 12 n ^ { 2 } - 8 n } { 2 n }$$

$$3x^2-3x+8$$

$$\int\frac{3u-3}{\left(u^2-2u+6\right)}du$$

$$4x^2-8x-9y^2-36y=68$$

$$\sqrt[3]{n}=8$$

$$\frac{2}{\csc\left(x\right)+\cot\left(x\right)}+\frac{2}{\csc\left(x\right)-\cot\left(x\right)}=4\csc\left(x\right)$$