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Popular >

3x^2+9x<0

Solution

3 x^{2} + 9 x < 0

Solution

- 3 < x < 0

+1

Solution steps

3 x^{2} + 9 x < 0

Rewrite in standard form

x^{2} + 3 x < 0

Factor

x^{2} + 3 x : x (x + 3)

x (x + 3) < 0

Identify the intervals

- 3 < x < 0

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Frequently Asked Questions (FAQ)

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