(3x^2-4x+11)+(12x+2)=

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Solution for (3x^2-4x+11)+(12x+2)= equation: 


Simplifying
(3x2 + -4x + 11) + (12x + 2) = 0

Reorder the terms:
(11 + -4x + 3x2) + (12x + 2) = 0

Remove parenthesis around (11 + -4x + 3x2)
11 + -4x + 3x2 + (12x + 2) = 0

Reorder the terms:
11 + -4x + 3x2 + (2 + 12x) = 0

Remove parenthesis around (2 + 12x)
11 + -4x + 3x2 + 2 + 12x = 0

Reorder the terms:
11 + 2 + -4x + 12x + 3x2 = 0

Combine like terms: 11 + 2 = 13
13 + -4x + 12x + 3x2 = 0

Combine like terms: -4x + 12x = 8x
13 + 8x + 3x2 = 0

Solving
13 + 8x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
4.333333333 + 2.666666667x + x2 = 0

Move the constant term to the right:

Add '-4.333333333' to each side of the equation.
4.333333333 + 2.666666667x + -4.333333333 + x2 = 0 + -4.333333333

Reorder the terms:
4.333333333 + -4.333333333 + 2.666666667x + x2 = 0 + -4.333333333

Combine like terms: 4.333333333 + -4.333333333 = 0.000000000
0.000000000 + 2.666666667x + x2 = 0 + -4.333333333
2.666666667x + x2 = 0 + -4.333333333

Combine like terms: 0 + -4.333333333 = -4.333333333
2.666666667x + x2 = -4.333333333

The x term is 2.666666667x.  Take half its coefficient (1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
2.666666667x + 1.777777780 + x2 = -4.333333333 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667x + x2 = -4.333333333 + 1.777777780

Combine like terms: -4.333333333 + 1.777777780 = -2.555555553
1.777777780 + 2.666666667x + x2 = -2.555555553

Factor a perfect square on the left side:
(x + 1.333333334)(x + 1.333333334) = -2.555555553

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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