x^2-8x-16+x^2+x^2=x^2+8x+16

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Solution for x^2-8x-16+x^2+x^2=x^2+8x+16 equation:


Simplifying
x2 + -8x + -16 + x2 + x2 = x2 + 8x + 16

Reorder the terms:
-16 + -8x + x2 + x2 + x2 = x2 + 8x + 16

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

Combine like terms: 2x2 + x2 = 3x2
-16 + -8x + 3x2 = x2 + 8x + 16

Reorder the terms:
-16 + -8x + 3x2 = 16 + 8x + x2

Solving
-16 + -8x + 3x2 = 16 + 8x + x2

Solving for variable 'x'.

Reorder the terms:
-16 + -16 + -8x + -8x + 3x2 + -1x2 = 16 + 8x + x2 + -16 + -8x + -1x2

Combine like terms: -16 + -16 = -32
-32 + -8x + -8x + 3x2 + -1x2 = 16 + 8x + x2 + -16 + -8x + -1x2

Combine like terms: -8x + -8x = -16x
-32 + -16x + 3x2 + -1x2 = 16 + 8x + x2 + -16 + -8x + -1x2

Combine like terms: 3x2 + -1x2 = 2x2
-32 + -16x + 2x2 = 16 + 8x + x2 + -16 + -8x + -1x2

Reorder the terms:
-32 + -16x + 2x2 = 16 + -16 + 8x + -8x + x2 + -1x2

Combine like terms: 16 + -16 = 0
-32 + -16x + 2x2 = 0 + 8x + -8x + x2 + -1x2
-32 + -16x + 2x2 = 8x + -8x + x2 + -1x2

Combine like terms: 8x + -8x = 0
-32 + -16x + 2x2 = 0 + x2 + -1x2
-32 + -16x + 2x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-32 + -16x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-16 + -8x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-16 + -8x + x2)' equal to zero and attempt to solve: Simplifying -16 + -8x + x2 = 0 Solving -16 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '16' to each side of the equation. -16 + -8x + 16 + x2 = 0 + 16 Reorder the terms: -16 + 16 + -8x + x2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -8x + x2 = 0 + 16 -8x + x2 = 0 + 16 Combine like terms: 0 + 16 = 16 -8x + x2 = 16 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 = 16 + 16 Reorder the terms: 16 + -8x + x2 = 16 + 16 Combine like terms: 16 + 16 = 32 16 + -8x + x2 = 32 Factor a perfect square on the left side: (x + -4)(x + -4) = 32 Calculate the square root of the right side: 5.656854249 Break this problem into two subproblems by setting (x + -4) equal to 5.656854249 and -5.656854249.

Subproblem 1

x + -4 = 5.656854249 Simplifying x + -4 = 5.656854249 Reorder the terms: -4 + x = 5.656854249 Solving -4 + x = 5.656854249 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 = 5.656854249 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.656854249 + 4 x = 5.656854249 + 4 Combine like terms: 5.656854249 + 4 = 9.656854249 x = 9.656854249 Simplifying x = 9.656854249

Subproblem 2

x + -4 = -5.656854249 Simplifying x + -4 = -5.656854249 Reorder the terms: -4 + x = -5.656854249 Solving -4 + x = -5.656854249 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 = -5.656854249 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.656854249 + 4 x = -5.656854249 + 4 Combine like terms: -5.656854249 + 4 = -1.656854249 x = -1.656854249 Simplifying x = -1.656854249

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.656854249, -1.656854249}

Solution

x = {9.656854249, -1.656854249}

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