x^2-.1-.2=0

Solution for x^2-.1-.2=0 equation:

Simplifying
x2 + -0.1 + -0.2 = 0

Reorder the terms:
-0.1 + -0.2 + x2 = 0

Combine like terms: -0.1 + -0.2 = -0.3
-0.3 + x2 = 0

Solving
-0.3 + x2 = 0

Solving for variable 'x'.

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

Add '0.3' to each side of the equation.
-0.3 + 0.3 + x2 = 0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + x2 = 0 + 0.3
x2 = 0 + 0.3

Combine like terms: 0 + 0.3 = 0.3
x2 = 0.3

Simplifying
x2 = 0.3

Take the square root of each side:
x = {-0.547722558, 0.547722558}