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Popular >

x^2-9<= 0

Solution

x^{2} - 9 \leq 0

Solution

- 3 \leq x \leq 3

+1

Interval Notation

[- 3, 3]

Solution steps

x^{2} - 9 \leq 0

Move

9

to the right side

x^{2} \leq 9

For

u^{n} \leq a

, if

n

is even then

- 9 \leq x \leq 9

9 = 3

- 3 \leq x \leq 3

Popular Examples

factor 4x^7-20x^5+24x^3 factor

4 x^{7} - 20 x^{5} + 24 x^{3}

factor 3x^2+9xy+6y^2 factor

3 x^{2} + 9 x y + 6 y^{2}

factor 40x^2-33x-18 factor

40 x^{2} - 33 x - 18

-11(x+26)-27(x+26)=15x-15x

- 11 (x + 26) - 27 (x + 26) = 15 x - 15 x

factor x^3-x^2+4x-4 factor

x^{3} - x^{2} + 4 x - 4

Frequently Asked Questions (FAQ)

What is x^2-9<= 0 ?
The solution to x^2-9<= 0 is -3<= x<= 3