$$12x+4$$

$$\int\frac{\left(5x^2-33x+54\right)}{\left(\left(x-4\right)^2\:\left(x-2\right)\right)}dx$$

$$\int_0^0\left(x^{\frac{2}{3}}\left(x-1\right)\right)dx$$

$$\frac{x^3-12x^2-42}{x-5}$$

$$\lim_{x\to\infty}\left(\frac{5x^2+x-3}{x^3+2x-1}\right)$$

$$\left(-18.01\right)+\left(-29.332\right)$$

$$7x^2\cdot2x^2\cdot7y$$