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Popular >

4-x^2<= 0

Solution

4 - x^{2} \leq 0

Solution

x \leq - 2 or x \geq 2

+1

Interval Notation

(- \infty, - 2] \cup [2, \infty)

Solution steps

4 - x^{2} \leq 0

Move

4

to the right side

- x^{2} \leq - 4

Multiply both sides by

- 1

x^{2} \geq 4

For

u^{n} \geq a

, if

n

is even then

x \leq - 4 or x \geq 4

4 = 2

x \leq - 2 or x \geq 2

Popular Examples

factor x^3-7x^2+11x-5 factor

x^{3} - 7 x^{2} + 11 x - 5

p + 12 = 67

factor 45m^3n-5mn factor

45 m^{3} n - 5 mn

factor 27y^3-125 factor

27 y^{3} - 125

factor x^2-3/4 x+9/64 factor

x^{2} - \frac{3}{4} x + \frac{9}{64}

Frequently Asked Questions (FAQ)

What is 4-x^2<= 0 ?
The solution to 4-x^2<= 0 is x<=-2\lor x>= 2