X^2-0.4+0.04=0

Solution for X^2-0.4+0.04=0 equation:

Simplifying
X2 + -0.4 + 0.04 = 0

Reorder the terms:
-0.4 + 0.04 + X2 = 0

Combine like terms: -0.4 + 0.04 = -0.36
-0.36 + X2 = 0

Solving
-0.36 + X2 = 0

Solving for variable 'X'.

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

Add '0.36' to each side of the equation.
-0.36 + 0.36 + X2 = 0 + 0.36

Combine like terms: -0.36 + 0.36 = 0.00
0.00 + X2 = 0 + 0.36
X2 = 0 + 0.36

Combine like terms: 0 + 0.36 = 0.36
X2 = 0.36

Simplifying
X2 = 0.36

Take the square root of each side:
X = {-0.6, 0.6}