4.3x^2-5.3x+1.5=16.7x+3

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Solution for 4.3x^2-5.3x+1.5=16.7x+3 equation:


Simplifying
4.3x2 + -5.3x + 1.5 = 16.7x + 3

Reorder the terms:
1.5 + -5.3x + 4.3x2 = 16.7x + 3

Reorder the terms:
1.5 + -5.3x + 4.3x2 = 3 + 16.7x

Solving
1.5 + -5.3x + 4.3x2 = 3 + 16.7x

Solving for variable 'x'.

Reorder the terms:
1.5 + -3 + -5.3x + -16.7x + 4.3x2 = 3 + 16.7x + -3 + -16.7x

Combine like terms: 1.5 + -3 = -1.5
-1.5 + -5.3x + -16.7x + 4.3x2 = 3 + 16.7x + -3 + -16.7x

Combine like terms: -5.3x + -16.7x = -22x
-1.5 + -22x + 4.3x2 = 3 + 16.7x + -3 + -16.7x

Reorder the terms:
-1.5 + -22x + 4.3x2 = 3 + -3 + 16.7x + -16.7x

Combine like terms: 3 + -3 = 0
-1.5 + -22x + 4.3x2 = 0 + 16.7x + -16.7x
-1.5 + -22x + 4.3x2 = 16.7x + -16.7x

Combine like terms: 16.7x + -16.7x = 0.0
-1.5 + -22x + 4.3x2 = 0.0

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

Divide each side by '4.3'.
-0.3488372093 + -5.11627907x + x2 = 0

Move the constant term to the right:

Add '0.3488372093' to each side of the equation.
-0.3488372093 + -5.11627907x + 0.3488372093 + x2 = 0 + 0.3488372093

Reorder the terms:
-0.3488372093 + 0.3488372093 + -5.11627907x + x2 = 0 + 0.3488372093

Combine like terms: -0.3488372093 + 0.3488372093 = 0.0000000000
0.0000000000 + -5.11627907x + x2 = 0 + 0.3488372093
-5.11627907x + x2 = 0 + 0.3488372093

Combine like terms: 0 + 0.3488372093 = 0.3488372093
-5.11627907x + x2 = 0.3488372093

The x term is -5.11627907x.  Take half its coefficient (-2.558139535).
Square it (6.544077881) and add it to both sides.

Add '6.544077881' to each side of the equation.
-5.11627907x + 6.544077881 + x2 = 0.3488372093 + 6.544077881

Reorder the terms:
6.544077881 + -5.11627907x + x2 = 0.3488372093 + 6.544077881

Combine like terms: 0.3488372093 + 6.544077881 = 6.8929150903
6.544077881 + -5.11627907x + x2 = 6.8929150903

Factor a perfect square on the left side:
(x + -2.558139535)(x + -2.558139535) = 6.8929150903

Calculate the square root of the right side: 2.625436171

Break this problem into two subproblems by setting 
(x + -2.558139535) equal to 2.625436171 and -2.625436171.

Subproblem 1

x + -2.558139535 = 2.625436171 Simplifying x + -2.558139535 = 2.625436171 Reorder the terms: -2.558139535 + x = 2.625436171 Solving -2.558139535 + x = 2.625436171 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.558139535' to each side of the equation. -2.558139535 + 2.558139535 + x = 2.625436171 + 2.558139535 Combine like terms: -2.558139535 + 2.558139535 = 0.000000000 0.000000000 + x = 2.625436171 + 2.558139535 x = 2.625436171 + 2.558139535 Combine like terms: 2.625436171 + 2.558139535 = 5.183575706 x = 5.183575706 Simplifying x = 5.183575706

Subproblem 2

x + -2.558139535 = -2.625436171 Simplifying x + -2.558139535 = -2.625436171 Reorder the terms: -2.558139535 + x = -2.625436171 Solving -2.558139535 + x = -2.625436171 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.558139535' to each side of the equation. -2.558139535 + 2.558139535 + x = -2.625436171 + 2.558139535 Combine like terms: -2.558139535 + 2.558139535 = 0.000000000 0.000000000 + x = -2.625436171 + 2.558139535 x = -2.625436171 + 2.558139535 Combine like terms: -2.625436171 + 2.558139535 = -0.067296636 x = -0.067296636 Simplifying x = -0.067296636

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.183575706, -0.067296636}

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