(9x^2+2)+(x-3x^2)=

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Solution for (9x^2+2)+(x-3x^2)= equation: 


Simplifying
(9x2 + 2) + (x + -3x2) = 0

Reorder the terms:
(2 + 9x2) + (x + -3x2) = 0

Remove parenthesis around (2 + 9x2)
2 + 9x2 + (x + -3x2) = 0

Remove parenthesis around (x + -3x2)
2 + 9x2 + x + -3x2 = 0

Reorder the terms:
2 + x + 9x2 + -3x2 = 0

Combine like terms: 9x2 + -3x2 = 6x2
2 + x + 6x2 = 0

Solving
2 + x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
0.3333333333 + 0.1666666667x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + 0.1666666667x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + 0.1666666667x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + 0.1666666667x + x2 = 0 + -0.3333333333
0.1666666667x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
0.1666666667x + x2 = -0.3333333333

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.1666666667x + 0.25 + x2 = -0.3333333333 + 0.25

Reorder the terms:
0.25 + 0.1666666667x + x2 = -0.3333333333 + 0.25

Combine like terms: -0.3333333333 + 0.25 = -0.0833333333
0.25 + 0.1666666667x + x2 = -0.0833333333

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -0.0833333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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