x^2+3.2x+4.81=0

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Solution for x^2+3.2x+4.81=0 equation: 


Simplifying
x2 + 3.2x + 4.81 = 0

Reorder the terms:
4.81 + 3.2x + x2 = 0

Solving
4.81 + 3.2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-4.81' to each side of the equation.
4.81 + 3.2x + -4.81 + x2 = 0 + -4.81

Reorder the terms:
4.81 + -4.81 + 3.2x + x2 = 0 + -4.81

Combine like terms: 4.81 + -4.81 = 0.00
0.00 + 3.2x + x2 = 0 + -4.81
3.2x + x2 = 0 + -4.81

Combine like terms: 0 + -4.81 = -4.81
3.2x + x2 = -4.81

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 = -4.81 + 2.56

Reorder the terms:
2.56 + 3.2x + x2 = -4.81 + 2.56

Combine like terms: -4.81 + 2.56 = -2.25
2.56 + 3.2x + x2 = -2.25

Factor a perfect square on the left side:
(x + 1.6)(x + 1.6) = -2.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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