12x^2+9x+56=

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Solution for 12x^2+9x+56= equation:


Simplifying
12x2 + 9x + 56 = 0

Reorder the terms:
56 + 9x + 12x2 = 0

Solving
56 + 9x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
4.666666667 + 0.75x + x2 = 0

Move the constant term to the right:

Add '-4.666666667' to each side of the equation.
4.666666667 + 0.75x + -4.666666667 + x2 = 0 + -4.666666667

Reorder the terms:
4.666666667 + -4.666666667 + 0.75x + x2 = 0 + -4.666666667

Combine like terms: 4.666666667 + -4.666666667 = 0.000000000
0.000000000 + 0.75x + x2 = 0 + -4.666666667
0.75x + x2 = 0 + -4.666666667

Combine like terms: 0 + -4.666666667 = -4.666666667
0.75x + x2 = -4.666666667

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = -4.666666667 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = -4.666666667 + 0.140625

Combine like terms: -4.666666667 + 0.140625 = -4.526041667
0.140625 + 0.75x + x2 = -4.526041667

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = -4.526041667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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