\[y = x^{2} + bx + c;\ \ \ \]
\[вершина\ \ M(5;7)\]
\[x_{0} = - \frac{b}{2a}\text{\ \ }\]
\[5 = - \frac{b}{2}\text{\ \ }\]
\[b = - 10.\]
\[5^{2} + 5 \cdot ( - 10) + c = 7\]
\[25 - 50 + c = 7\]
\[c = 7 + 25\]
\[c = 32.\]
\[Ответ:при\ b = - 10;\ \ c = 32.\]