0=x^2+4-396

Solution for 0=x^2+4-396 equation:

Simplifying
0 = x2 + 4 + -396

Reorder the terms:
0 = 4 + -396 + x2

Combine like terms: 4 + -396 = -392
0 = -392 + x2

Solving
0 = -392 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
0 + -1x2 = -392 + x2 + -1x2
Remove the zero:
-1x2 = -392 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x2 = -392 + 0
-1x2 = -392

Divide each side by '-1'.
x2 = 392

Simplifying
x2 = 392

Take the square root of each side:
x = {-19.798989873, 19.798989873}