6x^2-13x^2-4x+4=

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Solution for 6x^2-13x^2-4x+4= equation:


Simplifying
6x2 + -13x2 + -4x + 4 = 0

Reorder the terms:
4 + -4x + 6x2 + -13x2 = 0

Combine like terms: 6x2 + -13x2 = -7x2
4 + -4x + -7x2 = 0

Solving
4 + -4x + -7x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
-0.5714285714 + 0.5714285714x + x2 = 0

Move the constant term to the right:

Add '0.5714285714' to each side of the equation.
-0.5714285714 + 0.5714285714x + 0.5714285714 + x2 = 0 + 0.5714285714

Reorder the terms:
-0.5714285714 + 0.5714285714 + 0.5714285714x + x2 = 0 + 0.5714285714

Combine like terms: -0.5714285714 + 0.5714285714 = 0.0000000000
0.0000000000 + 0.5714285714x + x2 = 0 + 0.5714285714
0.5714285714x + x2 = 0 + 0.5714285714

Combine like terms: 0 + 0.5714285714 = 0.5714285714
0.5714285714x + x2 = 0.5714285714

The x term is 0.5714285714x.  Take half its coefficient (0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
0.5714285714x + 0.08163265305 + x2 = 0.5714285714 + 0.08163265305

Reorder the terms:
0.08163265305 + 0.5714285714x + x2 = 0.5714285714 + 0.08163265305

Combine like terms: 0.5714285714 + 0.08163265305 = 0.65306122445
0.08163265305 + 0.5714285714x + x2 = 0.65306122445

Factor a perfect square on the left side:
(x + 0.2857142857)(x + 0.2857142857) = 0.65306122445

Calculate the square root of the right side: 0.808122036

Break this problem into two subproblems by setting 
(x + 0.2857142857) equal to 0.808122036 and -0.808122036.

Subproblem 1

x + 0.2857142857 = 0.808122036 Simplifying x + 0.2857142857 = 0.808122036 Reorder the terms: 0.2857142857 + x = 0.808122036 Solving 0.2857142857 + x = 0.808122036 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2857142857' to each side of the equation. 0.2857142857 + -0.2857142857 + x = 0.808122036 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + x = 0.808122036 + -0.2857142857 x = 0.808122036 + -0.2857142857 Combine like terms: 0.808122036 + -0.2857142857 = 0.5224077503 x = 0.5224077503 Simplifying x = 0.5224077503

Subproblem 2

x + 0.2857142857 = -0.808122036 Simplifying x + 0.2857142857 = -0.808122036 Reorder the terms: 0.2857142857 + x = -0.808122036 Solving 0.2857142857 + x = -0.808122036 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2857142857' to each side of the equation. 0.2857142857 + -0.2857142857 + x = -0.808122036 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + x = -0.808122036 + -0.2857142857 x = -0.808122036 + -0.2857142857 Combine like terms: -0.808122036 + -0.2857142857 = -1.0938363217 x = -1.0938363217 Simplifying x = -1.0938363217

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5224077503, -1.0938363217}

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