(3x^2+5x+8)+(6x^2+3x+2)=

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Solution for (3x^2+5x+8)+(6x^2+3x+2)= equation:


Simplifying
(3x2 + 5x + 8) + (6x2 + 3x + 2) = 0

Reorder the terms:
(8 + 5x + 3x2) + (6x2 + 3x + 2) = 0

Remove parenthesis around (8 + 5x + 3x2)
8 + 5x + 3x2 + (6x2 + 3x + 2) = 0

Reorder the terms:
8 + 5x + 3x2 + (2 + 3x + 6x2) = 0

Remove parenthesis around (2 + 3x + 6x2)
8 + 5x + 3x2 + 2 + 3x + 6x2 = 0

Reorder the terms:
8 + 2 + 5x + 3x + 3x2 + 6x2 = 0

Combine like terms: 8 + 2 = 10
10 + 5x + 3x + 3x2 + 6x2 = 0

Combine like terms: 5x + 3x = 8x
10 + 8x + 3x2 + 6x2 = 0

Combine like terms: 3x2 + 6x2 = 9x2
10 + 8x + 9x2 = 0

Solving
10 + 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'.
1.111111111 + 0.8888888889x + x2 = 0

Move the constant term to the right:

Add '-1.111111111' to each side of the equation.
1.111111111 + 0.8888888889x + -1.111111111 + x2 = 0 + -1.111111111

Reorder the terms:
1.111111111 + -1.111111111 + 0.8888888889x + x2 = 0 + -1.111111111

Combine like terms: 1.111111111 + -1.111111111 = 0.000000000
0.000000000 + 0.8888888889x + x2 = 0 + -1.111111111
0.8888888889x + x2 = 0 + -1.111111111

Combine like terms: 0 + -1.111111111 = -1.111111111
0.8888888889x + x2 = -1.111111111

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 = -1.111111111 + 0.1975308642

Reorder the terms:
0.1975308642 + 0.8888888889x + x2 = -1.111111111 + 0.1975308642

Combine like terms: -1.111111111 + 0.1975308642 = -0.9135802468
0.1975308642 + 0.8888888889x + x2 = -0.9135802468

Factor a perfect square on the left side:
(x + 0.4444444445)(x + 0.4444444445) = -0.9135802468

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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