x^2+3.2x+3.56=0

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Solution for x^2+3.2x+3.56=0 equation:


Simplifying
x2 + 3.2x + 3.56 = 0

Reorder the terms:
3.56 + 3.2x + x2 = 0

Solving
3.56 + 3.2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-3.56' to each side of the equation.
3.56 + 3.2x + -3.56 + x2 = 0 + -3.56

Reorder the terms:
3.56 + -3.56 + 3.2x + x2 = 0 + -3.56

Combine like terms: 3.56 + -3.56 = 0.00
0.00 + 3.2x + x2 = 0 + -3.56
3.2x + x2 = 0 + -3.56

Combine like terms: 0 + -3.56 = -3.56
3.2x + x2 = -3.56

The x term is 3.2x.  Take half its coefficient (1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
3.2x + 2.56 + x2 = -3.56 + 2.56

Reorder the terms:
2.56 + 3.2x + x2 = -3.56 + 2.56

Combine like terms: -3.56 + 2.56 = -1
2.56 + 3.2x + x2 = -1

Factor a perfect square on the left side:
(x + 1.6)(x + 1.6) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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