0.6x^2+9=x

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Solution for 0.6x^2+9=x equation:


Simplifying
0.6x2 + 9 = x

Reorder the terms:
9 + 0.6x2 = x

Solving
9 + 0.6x2 = x

Solving for variable 'x'.

Reorder the terms:
9 + -1x + 0.6x2 = x + -1x

Combine like terms: x + -1x = 0
9 + -1x + 0.6x2 = 0

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

Divide each side by '0.6'.
15 + -1.666666667x + x2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -1.666666667x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + -1.666666667x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1.666666667x + x2 = 0 + -15
-1.666666667x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
-1.666666667x + x2 = -15

The x term is -1.666666667x.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667x + 0.6944444447 + x2 = -15 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667x + x2 = -15 + 0.6944444447

Combine like terms: -15 + 0.6944444447 = -14.3055555553
0.6944444447 + -1.666666667x + x2 = -14.3055555553

Factor a perfect square on the left side:
(x + -0.8333333335)(x + -0.8333333335) = -14.3055555553

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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