Постройте график функции y=(3x^2+4x)/x-(x^2-1)/(x+1).

\[y = \frac{3x^{2} + 4x}{x} - \frac{x^{2} - 1}{x + 1} =\]

\[= \frac{x(3x + 4)}{x} - \frac{(x - 1)(x + 1)}{x + 1} =\]

\[= 3x + 4 - (x - 1) = 3x + 4 - x + 1 =\]

\[= 2x + 5;\ \ \ \ \ x \neq 0,\ x \neq - 1.\]