2-3[7-2(4-x)]2x-1=

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Solution for 2-3[7-2(4-x)]2x-1= equation:


Simplifying
2 + -3[7 + -2(4 + -1x)] * 2x + -1 = 0
2 + -3[7 + (4 * -2 + -1x * -2)] * 2x + -1 = 0
2 + -3[7 + (-8 + 2x)] * 2x + -1 = 0

Combine like terms: 7 + -8 = -1
2 + -3[-1 + 2x] * 2x + -1 = 0

Reorder the terms for easier multiplication:
2 + -3 * 2x[-1 + 2x] + -1 = 0

Multiply -3 * 2
2 + -6x[-1 + 2x] + -1 = 0
2 + [-1 * -6x + 2x * -6x] + -1 = 0
2 + [6x + -12x2] + -1 = 0

Reorder the terms:
2 + -1 + 6x + -12x2 = 0

Combine like terms: 2 + -1 = 1
1 + 6x + -12x2 = 0

Solving
1 + 6x + -12x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
-0.08333333333 + -0.5x + x2 = 0

Move the constant term to the right:

Add '0.08333333333' to each side of the equation.
-0.08333333333 + -0.5x + 0.08333333333 + x2 = 0 + 0.08333333333

Reorder the terms:
-0.08333333333 + 0.08333333333 + -0.5x + x2 = 0 + 0.08333333333

Combine like terms: -0.08333333333 + 0.08333333333 = 0.00000000000
0.00000000000 + -0.5x + x2 = 0 + 0.08333333333
-0.5x + x2 = 0 + 0.08333333333

Combine like terms: 0 + 0.08333333333 = 0.08333333333
-0.5x + x2 = 0.08333333333

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 0.08333333333 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 0.08333333333 + 0.0625

Combine like terms: 0.08333333333 + 0.0625 = 0.14583333333
0.0625 + -0.5x + x2 = 0.14583333333

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 0.14583333333

Calculate the square root of the right side: 0.381881308

Break this problem into two subproblems by setting 
(x + -0.25) equal to 0.381881308 and -0.381881308.

Subproblem 1

x + -0.25 = 0.381881308 Simplifying x + -0.25 = 0.381881308 Reorder the terms: -0.25 + x = 0.381881308 Solving -0.25 + x = 0.381881308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 0.381881308 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 0.381881308 + 0.25 x = 0.381881308 + 0.25 Combine like terms: 0.381881308 + 0.25 = 0.631881308 x = 0.631881308 Simplifying x = 0.631881308

Subproblem 2

x + -0.25 = -0.381881308 Simplifying x + -0.25 = -0.381881308 Reorder the terms: -0.25 + x = -0.381881308 Solving -0.25 + x = -0.381881308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -0.381881308 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -0.381881308 + 0.25 x = -0.381881308 + 0.25 Combine like terms: -0.381881308 + 0.25 = -0.131881308 x = -0.131881308 Simplifying x = -0.131881308

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.631881308, -0.131881308}

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