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Popular >

2x^2-4<0

Solution

2 x^{2} - 4 < 0

Solution

- 2 < x < 2

+2

Interval Notation

(- 2, 2)

Decimal Notation

- 1.41421 \dots < x < 1.41421 \dots

Solution steps

2 x^{2} - 4 < 0

Move

4

to the right side

2 x^{2} < 4

Divide both sides by

2

x^{2} < 2

For

u^{n} < a

, if

n

is even then

- 2 < x < 2

Popular Examples

x^{2} + 4 x = - 5

9 e = 45

simplify (27x^6y^3)/(9x^4y^5)simplify

\frac{27 x ^{6} y ^{3}}{9 x ^{4} y ^{5}}

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

simplify (8+i)(8-i)simplify

(8 + i) (8 - i)

Frequently Asked Questions (FAQ)

What is 2x^2-4<0 ?
The solution to 2x^2-4<0 is -sqrt(2)<x<sqrt(2)