What is the domain of (2x^2+x-28)/(x^2-3x-28) ?

The domain of (2x^2+x-28)/(x^2-3x-28) 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 (2x^2+x-28)/(x^2-3x-28)

domain

\frac{2 x ^{2} + x - 28}{x ^{2} - 3 x - 28}

x < - 4 or - 4 < x < 7 or x > 7

Interval Notation

(- \infty, - 4) \cup (- 4, 7) \cup (7, \infty)

Solution steps

Find undefined (singularity) points:

x = 7, x = - 4

The function domain

x < - 4 or - 4 < x < 7 or x > 7

f (x) = 5 - 4 x, x < 2

f (x) = 7 x^{3} - 6 x^{2} + 9

f (x) = \frac{1}{x - 3} - \frac{x}{4 x - 2}

F (x) = \frac{2}{x ^{2}}

f (x) = \frac{3 x ^{2} + x - 4}{x - 1}

What is the domain of (2x^2+x-28)/(x^2-3x-28) ?
The domain of (2x^2+x-28)/(x^2-3x-28) is x<-4\lor-4<x<7\lor x>7