left(frac{f}{g}right)’=frac{f’g-fg’}{g^2}”” alt=””f(x)=frac{x^2}{x+3}”” title=””left(frac{f}{g}right)’=frac{f’g-fg’}{g^2}”” alt=””f(x)=frac{x^2}{x+3}”” alt=””left(frac{f}{g}right)’=frac{f’g-fg’}{g^2}”” alt=””f(x)=frac{x^2}{x+3}”” />