Identify $a, b$, and $c$ for the trinomial. \[ \begin{array}{l} x^{2}+9 x-64 a=\square \\ b=\square \\ c=\square \end{array} \]

Step 1 ：The given equation is in the form of a quadratic equation, which is generally represented as ax^2 + bx + c. Here, 'a' is the coefficient of x^2, 'b' is the coefficient of x, and 'c' is the constant term. So, we need to identify the values of a, b, and c from the given equation.

Step 2 ：a = 1

Step 3 ：b = 9

Step 4 ：c = -64

Step 5 ：The coefficients for the trinomial \(x^{2}+9x-64\) are: \[\begin{array}{l} a=\boxed{1} \\ b=\boxed{9} \\ c=\boxed{-64} \end{array}\]