\[y = \frac{2x^{2} - 5x + 2}{x - 2} - \frac{x^{2} - 9}{x + 3} =\]
\[= 2x - 1 - x + 3 = x + 2;\ \ \ \ \]
\[x \neq 2;\ \ \ x \neq - 3\]
\[2x^{2} - 5x + 2 = 0\]
\[x_{1} + x_{2} = 2,5;\ \ \ \ \ \]
\[x_{1} \cdot x_{2} = 1 \Longrightarrow x_{1} = 2;\ \ x_{2} = \frac{1}{2}.\]
\[2x^{2} - 5x + 2 =\]
\[= 2 \cdot (x - 2)\left( x - \frac{1}{2} \right) =\]
\[= (x - 2)(2x - 1)\]
\[y = x + 2\]
\[x\] | \[0\] | \[- 2\] |
---|---|---|
\[y\] | \[2\] | \[0\] |