$$\:-32\:\:\:\left(-4\right)$$

$$81x^4-4$$

$$1176cm^2\cdot6$$

$$\frac{11}{2}\left(\frac{47}{10}n-\frac{9}{5}\right)+\frac{7}{3}n$$

$$3\left(x-2yz+y^{2}\right)-4\left(x^{2}-y^{2}-3yz\right)+x^{2}+y^{2}$$

$$\int ln\left(x+5\right)dx$$

$$x^2+2x+4=7$$