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Popular >

x^2-x-2>= 0

Solution

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

Solution

x \leq - 1 or x \geq 2

+1

Interval Notation

(- \infty, - 1] \cup [2, \infty)

Solution steps

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

Factor

x^{2} - x - 2 : (x + 1) (x - 2)

(x + 1) (x - 2) \geq 0

Identify the intervals

x \leq - 1 or x \geq 2

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Frequently Asked Questions (FAQ)

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