\[\boxed{\text{145.}\text{\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\]
\[f(x) = a(x + b)^{2}\]
\[b = 2;\ \ A(0;1)\]
\[1 = a(0 + 2)^{2}\]
\[1 = 4a\]
\[a = \frac{1}{4}.\]
\[f(x) = \frac{1}{4} \cdot (x + 2)^{2}\]
\[f(38) = \frac{1}{4} \cdot (38 + 2)^{2} =\]
\[= \frac{1}{4} \cdot 1600 = 400.\]
\[Ответ:f(38) = 400.\]