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Popular >

2x^2-4x-6<0

Solution

2 x^{2} - 4 x - 6 < 0

Solution

- 1 < x < 3

+1

Interval Notation

(- 1, 3)

Solution steps

2 x^{2} - 4 x - 6 < 0

Rewrite in standard form

x^{2} - 2 x - 3 < 0

Factor

x^{2} - 2 x - 3 : (x + 1) (x - 3)

(x + 1) (x - 3) < 0

Identify the intervals

- 1 < x < 3

Popular Examples

∣ 7 x - 23 ∣ = - 19

x^2+0.041x-0.0041=0

x^{2} + 0.041 x - 0.0041 = 0

simplify (3x)^2 simplify

(3 x)^{2}

factor 27x^3-125y^3 factor

27 x^{3} - 125 y^{3}

simplify 2/7*3 simplify

\frac{2}{7} \cdot 3

Frequently Asked Questions (FAQ)

What is 2x^2-4x-6<0 ?
The solution to 2x^2-4x-6<0 is -1<x<3