What is the domain of (7x-21)/((x-7)(x+1)) ?

The domain of (7x-21)/((x-7)(x+1)) is x 7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

domain of (7x-21)/((x-7)(x+1))

domain

\frac{7 x - 21}{( x - 7 ) ( x + 1 )}

x < - 1 or - 1 < x < 7 or x > 7

Solution steps

Find undefined (singularity) points:

x = 7, x = - 1

The function domain

x < - 1 or - 1 < x < 7 or x > 7

\frac{1}{x ^{2}}

\frac{3 x}{2 - x}

f (x) = (x - 2)^{2} + 3

12 x + 4 y = - 8

f (x) = \frac{x + 16}{x - 4}

What is the domain of (7x-21)/((x-7)(x+1)) ?
The domain of (7x-21)/((x-7)(x+1)) is x<-1\lor-1<x<7\lor x>7