x^2-40=-28

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Solution for x^2-40=-28 equation: 


Simplifying
x2 + -40 = -28

Reorder the terms:
-40 + x2 = -28

Solving
-40 + x2 = -28

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + x2 = -28 + 40

Combine like terms: -40 + 40 = 0
0 + x2 = -28 + 40
x2 = -28 + 40

Combine like terms: -28 + 40 = 12
x2 = 12

Simplifying
x2 = 12

Take the square root of each side:
x = {-3.464101615, 3.464101615}

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