0.5x^2+x+4=0

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Solution for 0.5x^2+x+4=0 equation:


Simplifying
0.5x2 + x + 4 = 0

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

Solving
4 + x + 0.5x2 = 0

Solving for variable 'x'.

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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