6x^2=12x-1.8

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Solution for 6x^2=12x-1.8 equation:


Simplifying
6x2 = 12x + -1.8

Reorder the terms:
6x2 = -1.8 + 12x

Solving
6x2 = -1.8 + 12x

Solving for variable 'x'.

Reorder the terms:
1.8 + -12x + 6x2 = -1.8 + 12x + 1.8 + -12x

Reorder the terms:
1.8 + -12x + 6x2 = -1.8 + 1.8 + 12x + -12x

Combine like terms: -1.8 + 1.8 = 0.0
1.8 + -12x + 6x2 = 0.0 + 12x + -12x
1.8 + -12x + 6x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
1.8 + -12x + 6x2 = 0

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

Divide each side by '6'.
0.3 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.3' to each side of the equation.
0.3 + -2x + -0.3 + x2 = 0 + -0.3

Reorder the terms:
0.3 + -0.3 + -2x + x2 = 0 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -2x + x2 = 0 + -0.3
-2x + x2 = 0 + -0.3

Combine like terms: 0 + -0.3 = -0.3
-2x + x2 = -0.3

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.3 + 1

Reorder the terms:
1 + -2x + x2 = -0.3 + 1

Combine like terms: -0.3 + 1 = 0.7
1 + -2x + x2 = 0.7

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.7

Calculate the square root of the right side: 0.836660027

Break this problem into two subproblems by setting 
(x + -1) equal to 0.836660027 and -0.836660027.

Subproblem 1

x + -1 = 0.836660027 Simplifying x + -1 = 0.836660027 Reorder the terms: -1 + x = 0.836660027 Solving -1 + x = 0.836660027 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.836660027 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.836660027 + 1 x = 0.836660027 + 1 Combine like terms: 0.836660027 + 1 = 1.836660027 x = 1.836660027 Simplifying x = 1.836660027

Subproblem 2

x + -1 = -0.836660027 Simplifying x + -1 = -0.836660027 Reorder the terms: -1 + x = -0.836660027 Solving -1 + x = -0.836660027 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.836660027 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.836660027 + 1 x = -0.836660027 + 1 Combine like terms: -0.836660027 + 1 = 0.163339973 x = 0.163339973 Simplifying x = 0.163339973

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.836660027, 0.163339973}

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