\[- 4x^{- 2} = x^{2} - 5\]
\[\left\{ \begin{matrix} y = - 4x^{- 2} \\ y = x^{2} - 5\ \\ \end{matrix}\text{\ \ \ \ \ \ \ \ \ \ \ \ } \right.\ \left\{ \begin{matrix} y = - \frac{4}{x^{2}}\text{\ \ \ \ \ } \\ y = x^{2} - 5 \\ \end{matrix} \right.\ \]
\[y = - \frac{4}{x^{2}}\]
\[x\] | \[- 2\] | \[- 1\] | \[1\] | \[2\] |
---|---|---|---|---|
\[y\] | \[- 1\] | \[- 4\] | \[- 4\] | \[- 1\] |
\[y = x^{2} - 5\]
\[x\] | \[- 2\] | \[- 1\] | \[0\] | \[1\] | \[2\] |
---|---|---|---|---|---|
\[y\] | \[- 1\] | \[- 4\] | \[- 5\] | \[- 4\] | \[- 1\] |
\[Ответ:( - 2;\ - 1);\ ( - 1;\ - 4);\ \]
\[(1;\ - 4);\ (2;\ - 1).\]