4.9x^2+3.9x+1=0

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Solution for 4.9x^2+3.9x+1=0 equation: 


Simplifying
4.9x2 + 3.9x + 1 = 0

Reorder the terms:
1 + 3.9x + 4.9x2 = 0

Solving
1 + 3.9x + 4.9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4.9 the coefficient of the squared term: 

Divide each side by '4.9'.
0.2040816327 + 0.7959183673x + x2 = 0

Move the constant term to the right:

Add '-0.2040816327' to each side of the equation.
0.2040816327 + 0.7959183673x + -0.2040816327 + x2 = 0 + -0.2040816327

Reorder the terms:
0.2040816327 + -0.2040816327 + 0.7959183673x + x2 = 0 + -0.2040816327

Combine like terms: 0.2040816327 + -0.2040816327 = 0.0000000000
0.0000000000 + 0.7959183673x + x2 = 0 + -0.2040816327
0.7959183673x + x2 = 0 + -0.2040816327

Combine like terms: 0 + -0.2040816327 = -0.2040816327
0.7959183673x + x2 = -0.2040816327

The x term is 0.7959183673x.  Take half its coefficient (0.3979591837).
Square it (0.1583715119) and add it to both sides.

Add '0.1583715119' to each side of the equation.
0.7959183673x + 0.1583715119 + x2 = -0.2040816327 + 0.1583715119

Reorder the terms:
0.1583715119 + 0.7959183673x + x2 = -0.2040816327 + 0.1583715119

Combine like terms: -0.2040816327 + 0.1583715119 = -0.0457101208
0.1583715119 + 0.7959183673x + x2 = -0.0457101208

Factor a perfect square on the left side:
(x + 0.3979591837)(x + 0.3979591837) = -0.0457101208

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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