.4925-.9x+4x^2=0

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Solution for .4925-.9x+4x^2=0 equation:


Simplifying
0.4925 + -0.9x + 4x2 = 0

Solving
0.4925 + -0.9x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.123125 + -0.225x + x2 = 0

Move the constant term to the right:

Add '-0.123125' to each side of the equation.
0.123125 + -0.225x + -0.123125 + x2 = 0 + -0.123125

Reorder the terms:
0.123125 + -0.123125 + -0.225x + x2 = 0 + -0.123125

Combine like terms: 0.123125 + -0.123125 = 0.000000
0.000000 + -0.225x + x2 = 0 + -0.123125
-0.225x + x2 = 0 + -0.123125

Combine like terms: 0 + -0.123125 = -0.123125
-0.225x + x2 = -0.123125

The x term is -0.225x.  Take half its coefficient (-0.1125).
Square it (0.01265625) and add it to both sides.

Add '0.01265625' to each side of the equation.
-0.225x + 0.01265625 + x2 = -0.123125 + 0.01265625

Reorder the terms:
0.01265625 + -0.225x + x2 = -0.123125 + 0.01265625

Combine like terms: -0.123125 + 0.01265625 = -0.11046875
0.01265625 + -0.225x + x2 = -0.11046875

Factor a perfect square on the left side:
(x + -0.1125)(x + -0.1125) = -0.11046875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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