11x^2+4x+7=0

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Solution for 11x^2+4x+7=0 equation:


Simplifying
11x2 + 4x + 7 = 0

Reorder the terms:
7 + 4x + 11x2 = 0

Solving
7 + 4x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
0.6363636364 + 0.3636363636x + x2 = 0

Move the constant term to the right:

Add '-0.6363636364' to each side of the equation.
0.6363636364 + 0.3636363636x + -0.6363636364 + x2 = 0 + -0.6363636364

Reorder the terms:
0.6363636364 + -0.6363636364 + 0.3636363636x + x2 = 0 + -0.6363636364

Combine like terms: 0.6363636364 + -0.6363636364 = 0.0000000000
0.0000000000 + 0.3636363636x + x2 = 0 + -0.6363636364
0.3636363636x + x2 = 0 + -0.6363636364

Combine like terms: 0 + -0.6363636364 = -0.6363636364
0.3636363636x + x2 = -0.6363636364

The x term is 0.3636363636x.  Take half its coefficient (0.1818181818).
Square it (0.03305785123) and add it to both sides.

Add '0.03305785123' to each side of the equation.
0.3636363636x + 0.03305785123 + x2 = -0.6363636364 + 0.03305785123

Reorder the terms:
0.03305785123 + 0.3636363636x + x2 = -0.6363636364 + 0.03305785123

Combine like terms: -0.6363636364 + 0.03305785123 = -0.60330578517
0.03305785123 + 0.3636363636x + x2 = -0.60330578517

Factor a perfect square on the left side:
(x + 0.1818181818)(x + 0.1818181818) = -0.60330578517

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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