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Popular >

9x^2-1>= 0

Solution

9 x^{2} - 1 \geq 0

Solution

x \leq - \frac{1}{3} or x \geq \frac{1}{3}

+2

Interval Notation

(- \infty, - \frac{1}{3}] \cup [\frac{1}{3}, \infty)

Decimal Notation

x \leq - 0.33333 \dots or x \geq 0.33333 \dots

Solution steps

9 x^{2} - 1 \geq 0

Move

1

to the right side

9 x^{2} \geq 1

Divide both sides by

9

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

For

u^{n} \geq a

, if

n

is even then

x \leq - \frac{1}{9} or x \geq \frac{1}{9}

\frac{1}{9} = \frac{1}{3}

x \leq - \frac{1}{3} or x \geq \frac{1}{3}

Popular Examples

f (y) = 3 - \frac{y ^{2}}{4}

simplify sqrt(25/20)simplify

\frac{25}{20}

factor 25r^2-16 factor

25 r^{2} - 16

factor-x^3+6x^2+15x+8 factor

- x^{3} + 6 x^{2} + 15 x + 8

factor 25u^2-40u+16 factor

25 u^{2} - 40 u + 16

Frequently Asked Questions (FAQ)

What is 9x^2-1>= 0 ?
The solution to 9x^2-1>= 0 is x<=-1/3 \lor x>= 1/3