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Popular >

4-x=sqrt(x^2-8)

Solution

4 - x = x^{2} - 8

Solution

x = 3

Solution steps

4 - x = x^{2} - 8

Square both sides:

16 - 8 x + x^{2} = x^{2} - 8

16 - 8 x + x^{2} = x^{2} - 8

Solve

16 - 8 x + x^{2} = x^{2} - 8 : x = 3

x = 3

Verify Solutions:

x = 3

True

The solution is

x = 3

Popular Examples

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sqrt(x+1)-sqrt(4x-3)=1

x + 1 - 4 x - 3 = 1

7 x^{\frac{5}{4}} - 14 = 0

1/(sqrt(1-x^2))=2

\frac{1}{1 - x ^{2}} = 2

Frequently Asked Questions (FAQ)

What is the answer to 4-x=sqrt(x^2-8) ?
The answer to 4-x=sqrt(x^2-8) is x=3
Solve for x: 4-x=sqrt(x^2-8)
The solution is x=3