$$\lim_{x\to0}\left(\frac{x^3+7x^2}{x^2}\right)$$

$$\int_2^{\infty}\left(\frac{1}{\sqrt{v-1}}\right)dv$$

$$\int_{1}^{8}\left(\frac{x^{\frac{1}{2}}}{1+x^{\frac{1}{2}}}\right)dx$$

$$w^2+14w+14^2$$

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

$$11x+2\:\:11x-2$$

$$30:-10$$