9x^2-11x+7=0

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Solution for 9x^2-11x+7=0 equation:


Simplifying
9x2 + -11x + 7 = 0

Reorder the terms:
7 + -11x + 9x2 = 0

Solving
7 + -11x + 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'.
0.7777777778 + -1.222222222x + x2 = 0

Move the constant term to the right:

Add '-0.7777777778' to each side of the equation.
0.7777777778 + -1.222222222x + -0.7777777778 + x2 = 0 + -0.7777777778

Reorder the terms:
0.7777777778 + -0.7777777778 + -1.222222222x + x2 = 0 + -0.7777777778

Combine like terms: 0.7777777778 + -0.7777777778 = 0.0000000000
0.0000000000 + -1.222222222x + x2 = 0 + -0.7777777778
-1.222222222x + x2 = 0 + -0.7777777778

Combine like terms: 0 + -0.7777777778 = -0.7777777778
-1.222222222x + x2 = -0.7777777778

The x term is -1.222222222x.  Take half its coefficient (-0.611111111).
Square it (0.3734567900) and add it to both sides.

Add '0.3734567900' to each side of the equation.
-1.222222222x + 0.3734567900 + x2 = -0.7777777778 + 0.3734567900

Reorder the terms:
0.3734567900 + -1.222222222x + x2 = -0.7777777778 + 0.3734567900

Combine like terms: -0.7777777778 + 0.3734567900 = -0.4043209878
0.3734567900 + -1.222222222x + x2 = -0.4043209878

Factor a perfect square on the left side:
(x + -0.611111111)(x + -0.611111111) = -0.4043209878

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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