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Popular >

x^2>= 2x+8

Solution

x^{2} \geq 2 x + 8

Solution

x \leq - 2 or x \geq 4

+1

Interval Notation

(- \infty, - 2] \cup [4, \infty)

Solution steps

x^{2} \geq 2 x + 8

Rewrite in standard form

x^{2} - 8 - 2 x \geq 0

Factor

x^{2} - 8 - 2 x : (x + 2) (x - 4)

(x + 2) (x - 4) \geq 0

Identify the intervals

x \leq - 2 or x \geq 4

Popular Examples

factor a^2+12a+36 factor

a^{2} + 12 a + 36

2 x^{2} = 6 x - 3

3 n < 18

factor q^2+11qr+18r^2 factor

q^{2} + 11 q r + 18 r^{2}

simplify (8b^2-8a^2)/(a^2-2ab+b^2)simplify

\frac{8 b ^{2} - 8 a ^{2}}{a ^{2} - 2 ab + b ^{2}}

Frequently Asked Questions (FAQ)

What is x^2>= 2x+8 ?
The solution to x^2>= 2x+8 is x<=-2\lor x>= 4