$$\left(3-b^6xy\right)^5$$

$$\sin^2\left(-\frac{8}{9}\right)+\cos^2\left(x\right)=1$$

$$\lim_{x\to-9}\left(x+8\right)$$

$$9^2+10x+4$$

$$\int\frac{\left(2x\right)}{4-x^4}dx$$

$$9x^2+27$$

$$\sqrt[4]{-\frac{1024}{6561}}$$