\[\boxed{\mathbf{254}\mathbf{.}}\]
\[1)\ 2^{- x} = 3x + 10\ \]
\[y = (2)^{- x} - показательная\ \]
\[функция.\]
\[x\] | \[- 3\] | \[- 2\] | \[0\] |
---|---|---|---|
\[y\] | \[8\] | \[4\] | \[1\] |
\[y = 3x + 10 - уравнение\ \]
\[прямой.\]
\[x\] | \[- 4\] | \[- 3\] |
---|---|---|
\[y\] | \[- 2\] | \[1\] |
\[Ответ:\ \ x = - 2.\]
\[2)\ \left( \frac{1}{3} \right)^{- x} = 2x + 5\ \]
\[y = \left( \frac{1}{3} \right)^{- x} = 3^{x} -\]
\[показательная\ функция.\]
\[x\] | \[0\] | \[1\] | \[2\] |
---|---|---|---|
\[y\] | \[1\] | \[3\] | \[9\] |
\[y = 3x + 10 - уравнение\ \]
\[прямой.\]
\[x\] | \[0\] | \[1\] |
---|---|---|
\[y\] | \[5\] | \[7\] |
\[Ответ:\ \ x_{1} \approx - 2,5\ \ \ x_{2} = 2.\]