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Popular >

sqrt(2x^2-4)=x

Solution

2 x^{2} - 4 = x

Solution

x = 2

Solution steps

2 x^{2} - 4 = x

Square both sides:

2 x^{2} - 4 = x^{2}

2 x^{2} - 4 = x^{2}

Solve

2 x^{2} - 4 = x^{2} : x = 2, x = - 2

x = 2, x = - 2

Verify Solutions:

x = 2

True

, x = - 2

False

The solution is

x = 2

Popular Examples

4 t + 9 = - 5

sqrt(3x-2)-sqrt(x+2)=4

3 x - 2 - x + 2 = 4

sqrt(x+4)+sqrt(x-4)=4

x + 4 + x - 4 = 4

sqrt(4-b)=sqrt(b)

4 - b = b

2sqrt(x+1)=sqrt(x+1)+2

2 x + 1 = x + 1 + 2

Frequently Asked Questions (FAQ)

What is the answer to sqrt(2x^2-4)=x ?
The answer to sqrt(2x^2-4)=x is x=2
Solve for x: sqrt(2x^2-4)=x
The solution is x=2