$$25z^4+10z^4+1$$

$$\int\left(4-x^2\right)^{\frac{13}{2}}dx$$

$$\left(x^5\right)^7$$

$$-4x^2-2x+6$$

$$\frac{\sec^2\left(x\right)-\tan^2\left(x\right)}{\sec\left(x\right)+\tan\left(x\right)}+\tan\left(x\right)$$

$$\int12\left(6x+4\right)^8dx$$

$$\sqrt[3]{b^3}a^6$$