$$12^3+36+54-b^3$$

$$\frac{x^5-x^3+x}{x-2}$$

$$\int\left(\frac{\sec\left(x\right)^2}{\tan\left(x\right)^2+13\cdot\tan\left(x\right)+42}\right)dx$$

$$y^2+2cx+c^2=0$$

$$\frac{dy}{dx}=\frac{\left(2x+2xy^2\right)}{\left(y+2x^2y\right)}$$

$$30y-12$$

$$4i^2+16ij+16j^2$$