[x^2-5]=4

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Solution for [x^2-5]=4 equation: 


Simplifying
[x2 + -5] = 4

Reorder the terms:
[-5 + x2] = 4

Remove brackets around [-5 + x2]
-5 + x2 = 4

Solving
-5 + x2 = 4

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + x2 = 4 + 5

Combine like terms: -5 + 5 = 0
0 + x2 = 4 + 5
x2 = 4 + 5

Combine like terms: 4 + 5 = 9
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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