$$4x^3-32=0$$

$$\int\left(1+4x\right)dx$$

$$x^2=1-4x$$

$$\int_{-\pi}^{\pi}\sin\left(\frac{\left(4x+9\pi\right)}{18}+3x\right)dx$$

$$dx-2ydy=0$$

$$\left(x+2\right)\left(x-1\right)\left(x-2\right)$$

$$\left(+9\right)-\left(-137\right)-\left(+23\right)$$