3x^2-22x=6x^2-5x-8

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Solution for 3x^2-22x=6x^2-5x-8 equation:


Simplifying
3x2 + -22x = 6x2 + -5x + -8

Reorder the terms:
-22x + 3x2 = 6x2 + -5x + -8

Reorder the terms:
-22x + 3x2 = -8 + -5x + 6x2

Solving
-22x + 3x2 = -8 + -5x + 6x2

Solving for variable 'x'.

Reorder the terms:
8 + -22x + 5x + 3x2 + -6x2 = -8 + -5x + 6x2 + 8 + 5x + -6x2

Combine like terms: -22x + 5x = -17x
8 + -17x + 3x2 + -6x2 = -8 + -5x + 6x2 + 8 + 5x + -6x2

Combine like terms: 3x2 + -6x2 = -3x2
8 + -17x + -3x2 = -8 + -5x + 6x2 + 8 + 5x + -6x2

Reorder the terms:
8 + -17x + -3x2 = -8 + 8 + -5x + 5x + 6x2 + -6x2

Combine like terms: -8 + 8 = 0
8 + -17x + -3x2 = 0 + -5x + 5x + 6x2 + -6x2
8 + -17x + -3x2 = -5x + 5x + 6x2 + -6x2

Combine like terms: -5x + 5x = 0
8 + -17x + -3x2 = 0 + 6x2 + -6x2
8 + -17x + -3x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
8 + -17x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-2.666666667 + 5.666666667x + x2 = 0

Move the constant term to the right:

Add '2.666666667' to each side of the equation.
-2.666666667 + 5.666666667x + 2.666666667 + x2 = 0 + 2.666666667

Reorder the terms:
-2.666666667 + 2.666666667 + 5.666666667x + x2 = 0 + 2.666666667

Combine like terms: -2.666666667 + 2.666666667 = 0.000000000
0.000000000 + 5.666666667x + x2 = 0 + 2.666666667
5.666666667x + x2 = 0 + 2.666666667

Combine like terms: 0 + 2.666666667 = 2.666666667
5.666666667x + x2 = 2.666666667

The x term is 5.666666667x.  Take half its coefficient (2.833333334).
Square it (8.027777782) and add it to both sides.

Add '8.027777782' to each side of the equation.
5.666666667x + 8.027777782 + x2 = 2.666666667 + 8.027777782

Reorder the terms:
8.027777782 + 5.666666667x + x2 = 2.666666667 + 8.027777782

Combine like terms: 2.666666667 + 8.027777782 = 10.694444449
8.027777782 + 5.666666667x + x2 = 10.694444449

Factor a perfect square on the left side:
(x + 2.833333334)(x + 2.833333334) = 10.694444449

Calculate the square root of the right side: 3.270236146

Break this problem into two subproblems by setting 
(x + 2.833333334) equal to 3.270236146 and -3.270236146.

Subproblem 1

x + 2.833333334 = 3.270236146 Simplifying x + 2.833333334 = 3.270236146 Reorder the terms: 2.833333334 + x = 3.270236146 Solving 2.833333334 + x = 3.270236146 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = 3.270236146 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = 3.270236146 + -2.833333334 x = 3.270236146 + -2.833333334 Combine like terms: 3.270236146 + -2.833333334 = 0.436902812 x = 0.436902812 Simplifying x = 0.436902812

Subproblem 2

x + 2.833333334 = -3.270236146 Simplifying x + 2.833333334 = -3.270236146 Reorder the terms: 2.833333334 + x = -3.270236146 Solving 2.833333334 + x = -3.270236146 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = -3.270236146 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = -3.270236146 + -2.833333334 x = -3.270236146 + -2.833333334 Combine like terms: -3.270236146 + -2.833333334 = -6.10356948 x = -6.10356948 Simplifying x = -6.10356948

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.436902812, -6.10356948}

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