Jika diketahui f(x) = 4x−1 dan g(x) = 2x2−3x+4 , maka fungsi gof(x) = .... 32x2-x+5 9x2-32x+28 32x2-28x+9 28x2-32x+9 28x2-32x-9

The notation $g \circ f(x)$ means $g(f(x))$, which implies substituting the entire function $f(x)$ into the variable $x$ of the function $g(x)$.

Given:
$f(x) = 4x - 1$
$g(x) = 2x^2 - 3x + 4$

Replace every $x$ in $g(x)$ with $f(x)$:

Now substitute $f(x) = 4x - 1$:

First, expand the squared term $(4x - 1)^2$:

Now substitute this back into the expression:

Distribute the constants:

Combine like terms:

The calculated function is $32x^2 - 28x + 9$. This matches option C.

The final answer is $\text{C. } 32x^2-28x+9$.