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Popular >

2x^2+1x-1<0

Solution

2 x^{2} + 1 x - 1 < 0

Solution

- 1 < x < \frac{1}{2}

+2

Interval Notation

(- 1, \frac{1}{2})

Decimal Notation

- 1 < x < 0.5

Solution steps

2 x^{2} + 1 \cdot x - 1 < 0

Rewrite in standard form

2 x^{2} + x - 1 < 0

Factor

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

(2 x - 1) (x + 1) < 0

Identify the intervals

- 1 < x < \frac{1}{2}

Popular Examples

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150=-16t^2+70t+5

150 = - 16 t^{2} + 70 t + 5

Frequently Asked Questions (FAQ)

What is 2x^2+1x-1<0 ?
The solution to 2x^2+1x-1<0 is -1<x< 1/2