x^2-3x-6=-x^2+3x-8

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Solution for x^2-3x-6=-x^2+3x-8 equation:


Simplifying
x2 + -3x + -6 = -1x2 + 3x + -8

Reorder the terms:
-6 + -3x + x2 = -1x2 + 3x + -8

Reorder the terms:
-6 + -3x + x2 = -8 + 3x + -1x2

Solving
-6 + -3x + x2 = -8 + 3x + -1x2

Solving for variable 'x'.

Reorder the terms:
-6 + 8 + -3x + -3x + x2 + x2 = -8 + 3x + -1x2 + 8 + -3x + x2

Combine like terms: -6 + 8 = 2
2 + -3x + -3x + x2 + x2 = -8 + 3x + -1x2 + 8 + -3x + x2

Combine like terms: -3x + -3x = -6x
2 + -6x + x2 + x2 = -8 + 3x + -1x2 + 8 + -3x + x2

Combine like terms: x2 + x2 = 2x2
2 + -6x + 2x2 = -8 + 3x + -1x2 + 8 + -3x + x2

Reorder the terms:
2 + -6x + 2x2 = -8 + 8 + 3x + -3x + -1x2 + x2

Combine like terms: -8 + 8 = 0
2 + -6x + 2x2 = 0 + 3x + -3x + -1x2 + x2
2 + -6x + 2x2 = 3x + -3x + -1x2 + x2

Combine like terms: 3x + -3x = 0
2 + -6x + 2x2 = 0 + -1x2 + x2
2 + -6x + 2x2 = -1x2 + x2

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

Factor out the Greatest Common Factor (GCF), '2'.
2(1 + -3x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(1 + -3x + x2)' equal to zero and attempt to solve: Simplifying 1 + -3x + x2 = 0 Solving 1 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + -3x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -3x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x + x2 = 0 + -1 -3x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -3x + x2 = -1 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -1 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -1 + 2.25 Combine like terms: -1 + 2.25 = 1.25 2.25 + -3x + x2 = 1.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (x + -1.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

x + -1.5 = 1.118033989 Simplifying x + -1.5 = 1.118033989 Reorder the terms: -1.5 + x = 1.118033989 Solving -1.5 + x = 1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.118033989 + 1.5 x = 1.118033989 + 1.5 Combine like terms: 1.118033989 + 1.5 = 2.618033989 x = 2.618033989 Simplifying x = 2.618033989

Subproblem 2

x + -1.5 = -1.118033989 Simplifying x + -1.5 = -1.118033989 Reorder the terms: -1.5 + x = -1.118033989 Solving -1.5 + x = -1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.118033989 + 1.5 x = -1.118033989 + 1.5 Combine like terms: -1.118033989 + 1.5 = 0.381966011 x = 0.381966011 Simplifying x = 0.381966011

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.618033989, 0.381966011}

Solution

x = {2.618033989, 0.381966011}

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