What is the domain of f(x)=ln(5-4x-x^2)+ln(-x) ?

The domain of f(x)=ln(5-4x-x^2)+ln(-x) is -5<x<0

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domain of f(x)=ln(5-4x-x^2)+ln(-x)

domain

f (x) = ln (5 - 4 x - x^{2}) + ln (- x)

- 5 < x < 0

Interval Notation

(- 5, 0)

Solution steps

Find positive values for logs:

- 5 < x < 0

The function domain

- 5 < x < 0

f (x) = \frac{( x ^{2} - 3 x - 4 )}{x - 4}

f (x) = \frac{2 x}{x ^{2} + x - 2}

\frac{9 x - 4}{7 x + 6}

\frac{x - 1}{2 - x}

s

What is the domain of f(x)=ln(5-4x-x^2)+ln(-x) ?
The domain of f(x)=ln(5-4x-x^2)+ln(-x) is -5<x<0