x^2+16-406=0

Solution for x^2+16-406=0 equation:

Simplifying
x2 + 16 + -406 = 0

Reorder the terms:
16 + -406 + x2 = 0

Combine like terms: 16 + -406 = -390
-390 + x2 = 0

Solving
-390 + x2 = 0

Solving for variable 'x'.

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

Add '390' to each side of the equation.
-390 + 390 + x2 = 0 + 390

Combine like terms: -390 + 390 = 0
0 + x2 = 0 + 390
x2 = 0 + 390

Combine like terms: 0 + 390 = 390
x2 = 390

Simplifying
x2 = 390

Take the square root of each side:
x = {-19.748417658, 19.748417658}