6x-(2x-1)(2x+1)=2-(3+2x)2

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Solution for 6x-(2x-1)(2x+1)=2-(3+2x)2 equation:


Simplifying
6x + -1(2x + -1)(2x + 1) = 2 + -1(3 + 2x) * 2

Reorder the terms:
6x + -1(-1 + 2x)(2x + 1) = 2 + -1(3 + 2x) * 2

Reorder the terms:
6x + -1(-1 + 2x)(1 + 2x) = 2 + -1(3 + 2x) * 2

Multiply (-1 + 2x) * (1 + 2x)
6x + -1(-1(1 + 2x) + 2x * (1 + 2x)) = 2 + -1(3 + 2x) * 2
6x + -1((1 * -1 + 2x * -1) + 2x * (1 + 2x)) = 2 + -1(3 + 2x) * 2
6x + -1((-1 + -2x) + 2x * (1 + 2x)) = 2 + -1(3 + 2x) * 2
6x + -1(-1 + -2x + (1 * 2x + 2x * 2x)) = 2 + -1(3 + 2x) * 2
6x + -1(-1 + -2x + (2x + 4x2)) = 2 + -1(3 + 2x) * 2

Combine like terms: -2x + 2x = 0
6x + -1(-1 + 0 + 4x2) = 2 + -1(3 + 2x) * 2
6x + -1(-1 + 4x2) = 2 + -1(3 + 2x) * 2
6x + (-1 * -1 + 4x2 * -1) = 2 + -1(3 + 2x) * 2
6x + (1 + -4x2) = 2 + -1(3 + 2x) * 2

Reorder the terms:
1 + 6x + -4x2 = 2 + -1(3 + 2x) * 2

Reorder the terms for easier multiplication:
1 + 6x + -4x2 = 2 + -1 * 2(3 + 2x)

Multiply -1 * 2
1 + 6x + -4x2 = 2 + -2(3 + 2x)
1 + 6x + -4x2 = 2 + (3 * -2 + 2x * -2)
1 + 6x + -4x2 = 2 + (-6 + -4x)

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

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

Solving for variable 'x'.

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

Combine like terms: 1 + 4 = 5
5 + 6x + 4x + -4x2 = -4 + -4x + 4 + 4x

Combine like terms: 6x + 4x = 10x
5 + 10x + -4x2 = -4 + -4x + 4 + 4x

Reorder the terms:
5 + 10x + -4x2 = -4 + 4 + -4x + 4x

Combine like terms: -4 + 4 = 0
5 + 10x + -4x2 = 0 + -4x + 4x
5 + 10x + -4x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
5 + 10x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-1.25 + -2.5x + x2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + -2.5x + 1.25 + x2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + -2.5x + x2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + -2.5x + x2 = 0 + 1.25
-2.5x + x2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
-2.5x + x2 = 1.25

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = 1.25 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = 1.25 + 1.5625

Combine like terms: 1.25 + 1.5625 = 2.8125
1.5625 + -2.5x + x2 = 2.8125

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 2.8125

Calculate the square root of the right side: 1.677050983

Break this problem into two subproblems by setting 
(x + -1.25) equal to 1.677050983 and -1.677050983.

Subproblem 1

x + -1.25 = 1.677050983 Simplifying x + -1.25 = 1.677050983 Reorder the terms: -1.25 + x = 1.677050983 Solving -1.25 + x = 1.677050983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 1.677050983 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 1.677050983 + 1.25 x = 1.677050983 + 1.25 Combine like terms: 1.677050983 + 1.25 = 2.927050983 x = 2.927050983 Simplifying x = 2.927050983

Subproblem 2

x + -1.25 = -1.677050983 Simplifying x + -1.25 = -1.677050983 Reorder the terms: -1.25 + x = -1.677050983 Solving -1.25 + x = -1.677050983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -1.677050983 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -1.677050983 + 1.25 x = -1.677050983 + 1.25 Combine like terms: -1.677050983 + 1.25 = -0.427050983 x = -0.427050983 Simplifying x = -0.427050983

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.927050983, -0.427050983}

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