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Popular >

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

Solution

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

Solution

True for all x

+1

Interval Notation

(- \infty, \infty)

Solution steps

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

Divide both sides by

4

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

Simplify

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

If

\frac{1}{a} \geq 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

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- \frac{6}{3}

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\frac{( - 13 125 )}{( 5 5 )}

7 x^{2} + 5 x - 2 = 0

simplify (n/5-5/n)^2 simplify

(\frac{n}{5} - \frac{5}{n})^{2}

5/3 (2x+2)-10>= 2x+2(2/3 x+2)

\frac{5}{3} (2 x + 2) - 10 \geq 2 x + 2 (\frac{2}{3} x + 2)

Frequently Asked Questions (FAQ)

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