2x^2-4=104

Solution for 2x^2-4=104 equation:

Simplifying
2x2 + -4 = 104

Reorder the terms:
-4 + 2x2 = 104

Solving
-4 + 2x2 = 104

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x2 = 104 + 4

Combine like terms: -4 + 4 = 0
0 + 2x2 = 104 + 4
2x2 = 104 + 4

Combine like terms: 104 + 4 = 108
2x2 = 108

Divide each side by '2'.
x2 = 54

Simplifying
x2 = 54

Take the square root of each side:
x = {-7.348469228, 7.348469228}