400-4x+3x^2=0

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Solution for 400-4x+3x^2=0 equation:


Simplifying
400 + -4x + 3x2 = 0

Solving
400 + -4x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
133.3333333 + -1.333333333x + x2 = 0

Move the constant term to the right:

Add '-133.3333333' to each side of the equation.
133.3333333 + -1.333333333x + -133.3333333 + x2 = 0 + -133.3333333

Reorder the terms:
133.3333333 + -133.3333333 + -1.333333333x + x2 = 0 + -133.3333333

Combine like terms: 133.3333333 + -133.3333333 = 0.0000000
0.0000000 + -1.333333333x + x2 = 0 + -133.3333333
-1.333333333x + x2 = 0 + -133.3333333

Combine like terms: 0 + -133.3333333 = -133.3333333
-1.333333333x + x2 = -133.3333333

The x term is -1.333333333x.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333x + 0.4444444442 + x2 = -133.3333333 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333x + x2 = -133.3333333 + 0.4444444442

Combine like terms: -133.3333333 + 0.4444444442 = -132.8888888558
0.4444444442 + -1.333333333x + x2 = -132.8888888558

Factor a perfect square on the left side:
(x + -0.6666666665)(x + -0.6666666665) = -132.8888888558

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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