9x^2+8x+9=0

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


Simplifying
9x2 + 8x + 9 = 0

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

Solving
9 + 8x + 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'.
1 + 0.8888888889x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 0.8888888889x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + 0.8888888889x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 0.8888888889x + x2 = 0 + -1
0.8888888889x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
0.8888888889x + x2 = -1

The x term is 0.8888888889x.  Take half its coefficient (0.4444444445).
Square it (0.1975308642) and add it to both sides.

Add '0.1975308642' to each side of the equation.
0.8888888889x + 0.1975308642 + x2 = -1 + 0.1975308642

Reorder the terms:
0.1975308642 + 0.8888888889x + x2 = -1 + 0.1975308642

Combine like terms: -1 + 0.1975308642 = -0.8024691358
0.1975308642 + 0.8888888889x + x2 = -0.8024691358

Factor a perfect square on the left side:
(x + 0.4444444445)(x + 0.4444444445) = -0.8024691358

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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