(9x+7x^2-12)+(14-6x-2x^2)=

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Solution for (9x+7x^2-12)+(14-6x-2x^2)= equation:


Simplifying
(9x + 7x2 + -12) + (14 + -6x + -2x2) = 0

Reorder the terms:
(-12 + 9x + 7x2) + (14 + -6x + -2x2) = 0

Remove parenthesis around (-12 + 9x + 7x2)
-12 + 9x + 7x2 + (14 + -6x + -2x2) = 0

Remove parenthesis around (14 + -6x + -2x2)
-12 + 9x + 7x2 + 14 + -6x + -2x2 = 0

Reorder the terms:
-12 + 14 + 9x + -6x + 7x2 + -2x2 = 0

Combine like terms: -12 + 14 = 2
2 + 9x + -6x + 7x2 + -2x2 = 0

Combine like terms: 9x + -6x = 3x
2 + 3x + 7x2 + -2x2 = 0

Combine like terms: 7x2 + -2x2 = 5x2
2 + 3x + 5x2 = 0

Solving
2 + 3x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
0.4 + 0.6x + x2 = 0

Move the constant term to the right:

Add '-0.4' to each side of the equation.
0.4 + 0.6x + -0.4 + x2 = 0 + -0.4

Reorder the terms:
0.4 + -0.4 + 0.6x + x2 = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 0.6x + x2 = 0 + -0.4
0.6x + x2 = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
0.6x + x2 = -0.4

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = -0.4 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = -0.4 + 0.09

Combine like terms: -0.4 + 0.09 = -0.31
0.09 + 0.6x + x2 = -0.31

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = -0.31

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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