9(x^2)-20x+16=0

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Solution for 9(x^2)-20x+16=0 equation: 


Simplifying
9(x2) + -20x + 16 = 0

Reorder the terms:
16 + -20x + 9x2 = 0

Solving
16 + -20x + 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'.
1.777777778 + -2.222222222x + x2 = 0

Move the constant term to the right:

Add '-1.777777778' to each side of the equation.
1.777777778 + -2.222222222x + -1.777777778 + x2 = 0 + -1.777777778

Reorder the terms:
1.777777778 + -1.777777778 + -2.222222222x + x2 = 0 + -1.777777778

Combine like terms: 1.777777778 + -1.777777778 = 0.000000000
0.000000000 + -2.222222222x + x2 = 0 + -1.777777778
-2.222222222x + x2 = 0 + -1.777777778

Combine like terms: 0 + -1.777777778 = -1.777777778
-2.222222222x + x2 = -1.777777778

The x term is -2.222222222x.  Take half its coefficient (-1.111111111).
Square it (1.234567901) and add it to both sides.

Add '1.234567901' to each side of the equation.
-2.222222222x + 1.234567901 + x2 = -1.777777778 + 1.234567901

Reorder the terms:
1.234567901 + -2.222222222x + x2 = -1.777777778 + 1.234567901

Combine like terms: -1.777777778 + 1.234567901 = -0.543209877
1.234567901 + -2.222222222x + x2 = -0.543209877

Factor a perfect square on the left side:
(x + -1.111111111)(x + -1.111111111) = -0.543209877

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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