0=4.9x^2-2x+4

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


Simplifying
0 = 4.9x2 + -2x + 4

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

Solving
0 = 4 + -2x + 4.9x2

Solving for variable 'x'.

Combine like terms: 0 + -4 = -4
-4 + 2x + -4.9x2 = 4 + -2x + 4.9x2 + -4 + 2x + -4.9x2

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

Combine like terms: 4 + -4 = 0
-4 + 2x + -4.9x2 = 0 + -2x + 2x + 4.9x2 + -4.9x2
-4 + 2x + -4.9x2 = -2x + 2x + 4.9x2 + -4.9x2

Combine like terms: -2x + 2x = 0
-4 + 2x + -4.9x2 = 0 + 4.9x2 + -4.9x2
-4 + 2x + -4.9x2 = 4.9x2 + -4.9x2

Combine like terms: 4.9x2 + -4.9x2 = 0.0
-4 + 2x + -4.9x2 = 0.0

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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