11x+9+5x^2=0

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Solution for 11x+9+5x^2=0 equation:


Simplifying
11x + 9 + 5x2 = 0

Reorder the terms:
9 + 11x + 5x2 = 0

Solving
9 + 11x + 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'.
1.8 + 2.2x + x2 = 0

Move the constant term to the right:

Add '-1.8' to each side of the equation.
1.8 + 2.2x + -1.8 + x2 = 0 + -1.8

Reorder the terms:
1.8 + -1.8 + 2.2x + x2 = 0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + 2.2x + x2 = 0 + -1.8
2.2x + x2 = 0 + -1.8

Combine like terms: 0 + -1.8 = -1.8
2.2x + x2 = -1.8

The x term is 2.2x.  Take half its coefficient (1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
2.2x + 1.21 + x2 = -1.8 + 1.21

Reorder the terms:
1.21 + 2.2x + x2 = -1.8 + 1.21

Combine like terms: -1.8 + 1.21 = -0.59
1.21 + 2.2x + x2 = -0.59

Factor a perfect square on the left side:
(x + 1.1)(x + 1.1) = -0.59

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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