4x^2-36x-6=2x^2-1x

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Solution for 4x^2-36x-6=2x^2-1x equation:


Simplifying
4x2 + -36x + -6 = 2x2 + -1x

Reorder the terms:
-6 + -36x + 4x2 = 2x2 + -1x

Reorder the terms:
-6 + -36x + 4x2 = -1x + 2x2

Solving
-6 + -36x + 4x2 = -1x + 2x2

Solving for variable 'x'.

Reorder the terms:
-6 + -36x + x + 4x2 + -2x2 = -1x + 2x2 + x + -2x2

Combine like terms: -36x + x = -35x
-6 + -35x + 4x2 + -2x2 = -1x + 2x2 + x + -2x2

Combine like terms: 4x2 + -2x2 = 2x2
-6 + -35x + 2x2 = -1x + 2x2 + x + -2x2

Reorder the terms:
-6 + -35x + 2x2 = -1x + x + 2x2 + -2x2

Combine like terms: -1x + x = 0
-6 + -35x + 2x2 = 0 + 2x2 + -2x2
-6 + -35x + 2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-6 + -35x + 2x2 = 0

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

Divide each side by '2'.
-3 + -17.5x + x2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -17.5x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -17.5x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -17.5x + x2 = 0 + 3
-17.5x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-17.5x + x2 = 3

The x term is -17.5x.  Take half its coefficient (-8.75).
Square it (76.5625) and add it to both sides.

Add '76.5625' to each side of the equation.
-17.5x + 76.5625 + x2 = 3 + 76.5625

Reorder the terms:
76.5625 + -17.5x + x2 = 3 + 76.5625

Combine like terms: 3 + 76.5625 = 79.5625
76.5625 + -17.5x + x2 = 79.5625

Factor a perfect square on the left side:
(x + -8.75)(x + -8.75) = 79.5625

Calculate the square root of the right side: 8.919781387

Break this problem into two subproblems by setting 
(x + -8.75) equal to 8.919781387 and -8.919781387.

Subproblem 1

x + -8.75 = 8.919781387 Simplifying x + -8.75 = 8.919781387 Reorder the terms: -8.75 + x = 8.919781387 Solving -8.75 + x = 8.919781387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.75' to each side of the equation. -8.75 + 8.75 + x = 8.919781387 + 8.75 Combine like terms: -8.75 + 8.75 = 0.00 0.00 + x = 8.919781387 + 8.75 x = 8.919781387 + 8.75 Combine like terms: 8.919781387 + 8.75 = 17.669781387 x = 17.669781387 Simplifying x = 17.669781387

Subproblem 2

x + -8.75 = -8.919781387 Simplifying x + -8.75 = -8.919781387 Reorder the terms: -8.75 + x = -8.919781387 Solving -8.75 + x = -8.919781387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.75' to each side of the equation. -8.75 + 8.75 + x = -8.919781387 + 8.75 Combine like terms: -8.75 + 8.75 = 0.00 0.00 + x = -8.919781387 + 8.75 x = -8.919781387 + 8.75 Combine like terms: -8.919781387 + 8.75 = -0.169781387 x = -0.169781387 Simplifying x = -0.169781387

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.669781387, -0.169781387}

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