$$x^3-1+5x^2-1$$

$$\int\:\:6xe^{3x^2}dx$$

$$\lim_{x\to\infty\:}\left(\frac{ln\left(3x^2+9\right)}{ln\left(x\right)}\right)$$

$$2\frac{1}{2}0+6\left(2^2+3^2\right)-44^2$$

$$\frac{1}{2}-\frac{13}{49x}=\frac{24}{49}-\frac{1}{14x}$$

$$7tanx=2\sqrt{3}+tanx$$

$$x^2+6x+14$$