9.3x(x)+5.7x-2.3=0

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Solution for 9.3x(x)+5.7x-2.3=0 equation:


Simplifying
9.3x(x) + 5.7x + -2.3 = 0

Multiply x * x
9.3x2 + 5.7x + -2.3 = 0

Reorder the terms:
-2.3 + 5.7x + 9.3x2 = 0

Solving
-2.3 + 5.7x + 9.3x2 = 0

Solving for variable 'x'.

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

Divide each side by '9.3'.
-0.247311828 + 0.6129032258x + x2 = 0

Move the constant term to the right:

Add '0.247311828' to each side of the equation.
-0.247311828 + 0.6129032258x + 0.247311828 + x2 = 0 + 0.247311828

Reorder the terms:
-0.247311828 + 0.247311828 + 0.6129032258x + x2 = 0 + 0.247311828

Combine like terms: -0.247311828 + 0.247311828 = 0.000000000
0.000000000 + 0.6129032258x + x2 = 0 + 0.247311828
0.6129032258x + x2 = 0 + 0.247311828

Combine like terms: 0 + 0.247311828 = 0.247311828
0.6129032258x + x2 = 0.247311828

The x term is 0.6129032258x.  Take half its coefficient (0.3064516129).
Square it (0.09391259105) and add it to both sides.

Add '0.09391259105' to each side of the equation.
0.6129032258x + 0.09391259105 + x2 = 0.247311828 + 0.09391259105

Reorder the terms:
0.09391259105 + 0.6129032258x + x2 = 0.247311828 + 0.09391259105

Combine like terms: 0.247311828 + 0.09391259105 = 0.34122441905
0.09391259105 + 0.6129032258x + x2 = 0.34122441905

Factor a perfect square on the left side:
(x + 0.3064516129)(x + 0.3064516129) = 0.34122441905

Calculate the square root of the right side: 0.584144177

Break this problem into two subproblems by setting 
(x + 0.3064516129) equal to 0.584144177 and -0.584144177.

Subproblem 1

x + 0.3064516129 = 0.584144177 Simplifying x + 0.3064516129 = 0.584144177 Reorder the terms: 0.3064516129 + x = 0.584144177 Solving 0.3064516129 + x = 0.584144177 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3064516129' to each side of the equation. 0.3064516129 + -0.3064516129 + x = 0.584144177 + -0.3064516129 Combine like terms: 0.3064516129 + -0.3064516129 = 0.0000000000 0.0000000000 + x = 0.584144177 + -0.3064516129 x = 0.584144177 + -0.3064516129 Combine like terms: 0.584144177 + -0.3064516129 = 0.2776925641 x = 0.2776925641 Simplifying x = 0.2776925641

Subproblem 2

x + 0.3064516129 = -0.584144177 Simplifying x + 0.3064516129 = -0.584144177 Reorder the terms: 0.3064516129 + x = -0.584144177 Solving 0.3064516129 + x = -0.584144177 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3064516129' to each side of the equation. 0.3064516129 + -0.3064516129 + x = -0.584144177 + -0.3064516129 Combine like terms: 0.3064516129 + -0.3064516129 = 0.0000000000 0.0000000000 + x = -0.584144177 + -0.3064516129 x = -0.584144177 + -0.3064516129 Combine like terms: -0.584144177 + -0.3064516129 = -0.8905957899 x = -0.8905957899 Simplifying x = -0.8905957899

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2776925641, -0.8905957899}

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