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Skriv inn den manglende verdien

$$\begin{gathered} f(x)=-5x^2+3x+4 \\ \begin{array}{cc}\text{x}& \text{f(x)}\\ \text{4}& \text{-64}\\ \text{5}& \text{?}\\ \text{6}& \text{-158}\\ \text{7}& \text{-220}\\ \text{8}& \text{-292}\end{array} \end{gathered}$$

$f(5)=$

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