0=.5x^2-x+4

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Solution for 0=.5x^2-x+4 equation:


Simplifying
0 = 0.5x2 + -1x + 4

Reorder the terms:
0 = 4 + -1x + 0.5x2

Solving
0 = 4 + -1x + 0.5x2

Solving for variable 'x'.

Combine like terms: 0 + -4 = -4
-4 + x + -0.5x2 = 4 + -1x + 0.5x2 + -4 + x + -0.5x2

Reorder the terms:
-4 + x + -0.5x2 = 4 + -4 + -1x + x + 0.5x2 + -0.5x2

Combine like terms: 4 + -4 = 0
-4 + x + -0.5x2 = 0 + -1x + x + 0.5x2 + -0.5x2
-4 + x + -0.5x2 = -1x + x + 0.5x2 + -0.5x2

Combine like terms: -1x + x = 0
-4 + x + -0.5x2 = 0 + 0.5x2 + -0.5x2
-4 + x + -0.5x2 = 0.5x2 + -0.5x2

Combine like terms: 0.5x2 + -0.5x2 = 0.0
-4 + x + -0.5x2 = 0.0

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
8 + -2x + x2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -2x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -2x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2x + x2 = 0 + -8
-2x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-2x + x2 = -8

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-2x + 0.25 + x2 = -8 + 0.25

Reorder the terms:
0.25 + -2x + x2 = -8 + 0.25

Combine like terms: -8 + 0.25 = -7.75
0.25 + -2x + x2 = -7.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -7.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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