$$\left(\:3ab^2\:-\:5xy\right)^3$$

$$\frac{dy}{dx}=7x^6y$$

$$43-29-65+83+78$$

$$\int\left(5x^4-4\right)^3\cdot20x^3dx$$

$$\frac{8x^5+4x^3+5x^2+8x+16}{2x^3+x^2+3}$$

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

$$y=ln\:2x^3$$