What is the domain of f(x)=(x^2-25)/(x^2-11x+18) ?

The domain of f(x)=(x^2-25)/(x^2-11x+18) is x 9

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domain of f(x)=(x^2-25)/(x^2-11x+18)

domain

f (x) = \frac{x ^{2} - 25}{x ^{2} - 11 x + 18}

x < 2 or 2 < x < 9 or x > 9

Interval Notation

(- \infty, 2) \cup (2, 9) \cup (9, \infty)

Solution steps

Find undefined (singularity) points:

x = 9, x = 2

The function domain

x < 2 or 2 < x < 9 or x > 9

\frac{2}{x + 2}

2 x^{3} + 9 x

f (x) = 50 - x^{2}

f (x) = - \frac{25}{( t + 4 ) ^{2}}

\frac{x + 1}{x ^{2} - 9 x}

What is the domain of f(x)=(x^2-25)/(x^2-11x+18) ?
The domain of f(x)=(x^2-25)/(x^2-11x+18) is x<2\lor 2<x<9\lor x>9