x^2+2.20x+2.21=0

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Solution for x^2+2.20x+2.21=0 equation: 


Simplifying
x2 + 2.20x + 2.21 = 0

Reorder the terms:
2.21 + 2.20x + x2 = 0

Solving
2.21 + 2.20x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-2.21' to each side of the equation.
2.21 + 2.20x + -2.21 + x2 = 0 + -2.21

Reorder the terms:
2.21 + -2.21 + 2.20x + x2 = 0 + -2.21

Combine like terms: 2.21 + -2.21 = 0.00
0.00 + 2.20x + x2 = 0 + -2.21
2.20x + x2 = 0 + -2.21

Combine like terms: 0 + -2.21 = -2.21
2.20x + x2 = -2.21

The x term is 2.20x.  Take half its coefficient (1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
2.20x + 1.21 + x2 = -2.21 + 1.21

Reorder the terms:
1.21 + 2.20x + x2 = -2.21 + 1.21

Combine like terms: -2.21 + 1.21 = -1
1.21 + 2.20x + x2 = -1

Factor a perfect square on the left side:
(x + 1.1)(x + 1.1) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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