$$\left(8r^2s^3\right)\left(15r^3s^3\right)$$

$$h\left(t\right)=\left(2t^3+t^2\right)^7$$

$$3x^2-5x,\:3$$

$$\left(\sqrt{x}-\frac{2}{3}x^2\:\right)^3$$

$$\lim_{x\to\infty}\left(\frac{\left(n+1\right)\left(x-38\right)}{n+2}\right)$$

$$\frac{x^3-7x^2+13x-3}{x-3}$$

$$w^2+10w+10$$