(-2x^2+6x+1)-2(4x^2-3x+1)=0

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Solution for (-2x^2+6x+1)-2(4x^2-3x+1)=0 equation:


Simplifying
(-2x2 + 6x + 1) + -2(4x2 + -3x + 1) = 0

Reorder the terms:
(1 + 6x + -2x2) + -2(4x2 + -3x + 1) = 0

Remove parenthesis around (1 + 6x + -2x2)
1 + 6x + -2x2 + -2(4x2 + -3x + 1) = 0

Reorder the terms:
1 + 6x + -2x2 + -2(1 + -3x + 4x2) = 0
1 + 6x + -2x2 + (1 * -2 + -3x * -2 + 4x2 * -2) = 0
1 + 6x + -2x2 + (-2 + 6x + -8x2) = 0

Reorder the terms:
1 + -2 + 6x + 6x + -2x2 + -8x2 = 0

Combine like terms: 1 + -2 = -1
-1 + 6x + 6x + -2x2 + -8x2 = 0

Combine like terms: 6x + 6x = 12x
-1 + 12x + -2x2 + -8x2 = 0

Combine like terms: -2x2 + -8x2 = -10x2
-1 + 12x + -10x2 = 0

Solving
-1 + 12x + -10x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
0.1 + -1.2x + x2 = 0.0

Move the constant term to the right:

Add '-0.1' to each side of the equation.
0.1 + -1.2x + -0.1 + x2 = 0.0 + -0.1

Reorder the terms:
0.1 + -0.1 + -1.2x + x2 = 0.0 + -0.1

Combine like terms: 0.1 + -0.1 = 0.0
0.0 + -1.2x + x2 = 0.0 + -0.1
-1.2x + x2 = 0.0 + -0.1

Combine like terms: 0.0 + -0.1 = -0.1
-1.2x + x2 = -0.1

The x term is -1.2x.  Take half its coefficient (-0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
-1.2x + 0.36 + x2 = -0.1 + 0.36

Reorder the terms:
0.36 + -1.2x + x2 = -0.1 + 0.36

Combine like terms: -0.1 + 0.36 = 0.26
0.36 + -1.2x + x2 = 0.26

Factor a perfect square on the left side:
(x + -0.6)(x + -0.6) = 0.26

Calculate the square root of the right side: 0.509901951

Break this problem into two subproblems by setting 
(x + -0.6) equal to 0.509901951 and -0.509901951.

Subproblem 1

x + -0.6 = 0.509901951 Simplifying x + -0.6 = 0.509901951 Reorder the terms: -0.6 + x = 0.509901951 Solving -0.6 + x = 0.509901951 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + x = 0.509901951 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = 0.509901951 + 0.6 x = 0.509901951 + 0.6 Combine like terms: 0.509901951 + 0.6 = 1.109901951 x = 1.109901951 Simplifying x = 1.109901951

Subproblem 2

x + -0.6 = -0.509901951 Simplifying x + -0.6 = -0.509901951 Reorder the terms: -0.6 + x = -0.509901951 Solving -0.6 + x = -0.509901951 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + x = -0.509901951 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + x = -0.509901951 + 0.6 x = -0.509901951 + 0.6 Combine like terms: -0.509901951 + 0.6 = 0.090098049 x = 0.090098049 Simplifying x = 0.090098049

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.109901951, 0.090098049}

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