4x-2(5x^2-4x+4)+(8x^2+4x-2)=

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Solution for 4x-2(5x^2-4x+4)+(8x^2+4x-2)= equation:


Simplifying
4x + -2(5x2 + -4x + 4) + (8x2 + 4x + -2) = 0

Reorder the terms:
4x + -2(4 + -4x + 5x2) + (8x2 + 4x + -2) = 0
4x + (4 * -2 + -4x * -2 + 5x2 * -2) + (8x2 + 4x + -2) = 0
4x + (-8 + 8x + -10x2) + (8x2 + 4x + -2) = 0

Reorder the terms:
4x + -8 + 8x + -10x2 + (-2 + 4x + 8x2) = 0

Remove parenthesis around (-2 + 4x + 8x2)
4x + -8 + 8x + -10x2 + -2 + 4x + 8x2 = 0

Reorder the terms:
-8 + -2 + 4x + 8x + 4x + -10x2 + 8x2 = 0

Combine like terms: -8 + -2 = -10
-10 + 4x + 8x + 4x + -10x2 + 8x2 = 0

Combine like terms: 4x + 8x = 12x
-10 + 12x + 4x + -10x2 + 8x2 = 0

Combine like terms: 12x + 4x = 16x
-10 + 16x + -10x2 + 8x2 = 0

Combine like terms: -10x2 + 8x2 = -2x2
-10 + 16x + -2x2 = 0

Solving
-10 + 16x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-5 + 8x + -1x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + 8x + -1x2)' equal to zero and attempt to solve: Simplifying -5 + 8x + -1x2 = 0 Solving -5 + 8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 5 + -8x + x2 = 0 Move the constant term to the right: Add '-5' to each side of the equation. 5 + -8x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + -8x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -8x + x2 = 0 + -5 -8x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -8x + x2 = -5 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = -5 + 16 Reorder the terms: 16 + -8x + x2 = -5 + 16 Combine like terms: -5 + 16 = 11 16 + -8x + x2 = 11 Factor a perfect square on the left side: (x + -4)(x + -4) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (x + -4) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + -4 = 3.31662479 Simplifying x + -4 = 3.31662479 Reorder the terms: -4 + x = 3.31662479 Solving -4 + x = 3.31662479 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.31662479 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.31662479 + 4 x = 3.31662479 + 4 Combine like terms: 3.31662479 + 4 = 7.31662479 x = 7.31662479 Simplifying x = 7.31662479

Subproblem 2

x + -4 = -3.31662479 Simplifying x + -4 = -3.31662479 Reorder the terms: -4 + x = -3.31662479 Solving -4 + x = -3.31662479 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.31662479 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.31662479 + 4 x = -3.31662479 + 4 Combine like terms: -3.31662479 + 4 = 0.68337521 x = 0.68337521 Simplifying x = 0.68337521

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.31662479, 0.68337521}

Solution

x = {7.31662479, 0.68337521}

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