What is the answer to sqrt(x^2-12)=sqrt(-x) ?

The answer to sqrt(x^2-12)=sqrt(-x) is x=-4

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sqrt(x^2-12)=sqrt(-x)

x^{2} - 12 = - x

x = - 4

Solution steps

x^{2} - 12 = - x

Square both sides:

x^{2} - 12 = - x

x^{2} - 12 = - x

Solve

x^{2} - 12 = - x : x = 3, x = - 4

x = 3, x = - 4

Verify Solutions:

x = 3

False

, x = - 4

True

The solution is

x = - 4

3 x + 13 = x + 3

4 x + 1 - 9 x - 2 = - 1

x + 7 = x + 1

2 x + 1 = 1 + x

3 x + 7 = 2 x

What is the answer to sqrt(x^2-12)=sqrt(-x) ?
The answer to sqrt(x^2-12)=sqrt(-x) is x=-4
Solve for x: sqrt(x^2-12)=sqrt(-x)
The solution is x=-4