9x^2+4x+8=0

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Solution for 9x^2+4x+8=0 equation:


Simplifying
9x2 + 4x + 8 = 0

Reorder the terms:
8 + 4x + 9x2 = 0

Solving
8 + 4x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
0.8888888889 + 0.4444444444x + x2 = 0

Move the constant term to the right:

Add '-0.8888888889' to each side of the equation.
0.8888888889 + 0.4444444444x + -0.8888888889 + x2 = 0 + -0.8888888889

Reorder the terms:
0.8888888889 + -0.8888888889 + 0.4444444444x + x2 = 0 + -0.8888888889

Combine like terms: 0.8888888889 + -0.8888888889 = 0.0000000000
0.0000000000 + 0.4444444444x + x2 = 0 + -0.8888888889
0.4444444444x + x2 = 0 + -0.8888888889

Combine like terms: 0 + -0.8888888889 = -0.8888888889
0.4444444444x + x2 = -0.8888888889

The x term is 0.4444444444x.  Take half its coefficient (0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
0.4444444444x + 0.04938271604 + x2 = -0.8888888889 + 0.04938271604

Reorder the terms:
0.04938271604 + 0.4444444444x + x2 = -0.8888888889 + 0.04938271604

Combine like terms: -0.8888888889 + 0.04938271604 = -0.83950617286
0.04938271604 + 0.4444444444x + x2 = -0.83950617286

Factor a perfect square on the left side:
(x + 0.2222222222)(x + 0.2222222222) = -0.83950617286

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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