0=1-2.2+x^2

Solution for 0=1-2.2+x^2 equation:

Simplifying
0 = 1 + -2.2 + x2

Combine like terms: 1 + -2.2 = -1.2
0 = -1.2 + x2

Solving
0 = -1.2 + 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 = -1.2 + x2 + -1x2
Remove the zero:
-1x2 = -1.2 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x2 = -1.2 + 0
-1x2 = -1.2

Divide each side by '-1'.
x2 = 1.2

Simplifying
x2 = 1.2

Take the square root of each side:
x = {-1.095445115, 1.095445115}