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Popular >

x^3+2x^2-4x-8>= 0

Solution

x^{3} + 2 x^{2} - 4 x - 8 \geq 0

Solution

x = - 2 or x \geq 2

+1

Solution steps

x^{3} + 2 x^{2} - 4 x - 8 \geq 0

Factor

x^{3} + 2 x^{2} - 4 x - 8 : (x + 2)^{2} (x - 2)

(x + 2)^{2} (x - 2) \geq 0

Identify the intervals

x = - 2 or x \geq 2

Popular Examples

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8 x^{2} - 37 x - 15

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m^{2} + 5 m + 6

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x^{2} + 2 x + 5 x + 10

Frequently Asked Questions (FAQ)

What is x^3+2x^2-4x-8>= 0 ?
The solution to x^3+2x^2-4x-8>= 0 is x=-2\lor x>= 2