4.9x^2+2x+4=0

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Solution for 4.9x^2+2x+4=0 equation: 


Simplifying
4.9x2 + 2x + 4 = 0

Reorder the terms:
4 + 2x + 4.9x2 = 0

Solving
4 + 2x + 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'.
0.8163265306 + 0.4081632653x + x2 = 0

Move the constant term to the right:

Add '-0.8163265306' to each side of the equation.
0.8163265306 + 0.4081632653x + -0.8163265306 + x2 = 0 + -0.8163265306

Reorder the terms:
0.8163265306 + -0.8163265306 + 0.4081632653x + x2 = 0 + -0.8163265306

Combine like terms: 0.8163265306 + -0.8163265306 = 0.0000000000
0.0000000000 + 0.4081632653x + x2 = 0 + -0.8163265306
0.4081632653x + x2 = 0 + -0.8163265306

Combine like terms: 0 + -0.8163265306 = -0.8163265306
0.4081632653x + x2 = -0.8163265306

The x term is 0.4081632653x.  Take half its coefficient (0.2040816327).
Square it (0.04164931281) and add it to both sides.

Add '0.04164931281' to each side of the equation.
0.4081632653x + 0.04164931281 + x2 = -0.8163265306 + 0.04164931281

Reorder the terms:
0.04164931281 + 0.4081632653x + x2 = -0.8163265306 + 0.04164931281

Combine like terms: -0.8163265306 + 0.04164931281 = -0.77467721779
0.04164931281 + 0.4081632653x + x2 = -0.77467721779

Factor a perfect square on the left side:
(x + 0.2040816327)(x + 0.2040816327) = -0.77467721779

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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