.0004=x^2

Solution for .0004=x^2 equation:

Simplifying
0.0004 = x2

Solving
0.0004 = 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.
0.0004 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0.0004 + -1x2 = 0

Add '-0.0004' to each side of the equation.
0.0004 + -0.0004 + -1x2 = 0 + -0.0004

Combine like terms: 0.0004 + -0.0004 = 0.0000
0.0000 + -1x2 = 0 + -0.0004
-1x2 = 0 + -0.0004

Combine like terms: 0 + -0.0004 = -0.0004
-1x2 = -0.0004

Divide each side by '-1'.
x2 = 0.0004

Simplifying
x2 = 0.0004

Take the square root of each side:
x = {-0.02, 0.02}