en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4/((x^2+9))>0

Solution

\frac{4}{( x ^{2} + 9 )} > 0

Solution

True for all x

+1

Interval Notation

(- \infty, \infty)

Solution steps

\frac{4}{x ^{2} + 9} > 0

Divide both sides by

4

\frac{\frac{4}{x ^{2} + 9}}{4} > \frac{0}{4}

Simplify

\frac{1}{x ^{2} + 9} > 0

If

\frac{1}{a} > 0

then

a > 0

x^{2} + 9 > 0

Move

9

to the right side

x^{2} > - 9

If n is even,

u^{n} \geq 0

for all

u

True for all x

Popular Examples

8 x - 12 = 15 x - 4 x

(3x+14)/4-16=-15

\frac{3 x + 14}{4} - 16 = - 15

∣ x - 9 ∣ = 2

4 x^{2} + 6 x - 4 = 0

factor-4r^2+1 factor

- 4 r^{2} + 1

Frequently Asked Questions (FAQ)

What is 4/((x^2+9))>0 ?
The solution to 4/((x^2+9))>0 is True for all x