What is the domain of f(x)=(x-3)/(x^2+4x-21) ?

The domain of f(x)=(x-3)/(x^2+4x-21) is x 3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

domain of f(x)=(x-3)/(x^2+4x-21)

domain

f (x) = \frac{x - 3}{x ^{2} + 4 x - 21}

x < - 7 or - 7 < x < 3 or x > 3

Interval Notation

(- \infty, - 7) \cup (- 7, 3) \cup (3, \infty)

Solution steps

Find undefined (singularity) points:

x = 3, x = - 7

The function domain

x < - 7 or - 7 < x < 3 or x > 3

cos (t - 1)

\frac{1}{x - 4} - 6

- \frac{10 - 3 x}{1 + 8 x}

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

What is the domain of f(x)=(x-3)/(x^2+4x-21) ?
The domain of f(x)=(x-3)/(x^2+4x-21) is x<-7\lor-7<x<3\lor x>3